Thomas Watson Sidwell opened Friends’ Select School (as Sidwell Friends was then known) in 1883 as an initiative in co-ed, urban day-school education. Sidwell, then 24 years old, had been a teacher at Baltimore Friends School, headed at the time by Eli Lamb, a leading Quaker educator. Lamb opened the way for Sidwell to begin a school in Washington by sponsoring authorization of the venture within the Baltimore Yearly Meeting. While the Alexandria Monthly and Baltimore Yearly Meetings offered some nominal assistance, this was, from the beginning, a proprietary operation.

Sidwell’s school began with 18 students in rooms that were part of the Friends Meeting House located in the 1800 block of I Street, four blocks from the White House. Just 20 years after Friends’ Select opened its doors, Sidwell’s school—with fully elaborated primary, intermediate and high school departments—enrolled nearly 200 students. Several buildings, including one of the first gymnasiums to be built in Washington, were eventually added to the I Street campus.

During the 1885-86 school year, a recent Vassar graduate joined the growing faculty. Frances Haldeman was hired to teach Greek, English and history. In 1887, Thomas Sidwell married Haldeman and also made her Co-Principal. The Sidwells would continue to share the leadership of the School for the rest of their lives.

In 1906 the first of a series of changes to the name of the institution that Thomas Sidwell had now presided over for twenty-three years began. The name “Friends School,” or simply “Friends,” came into currency at that time over “Friends’ Select.” Among the later variations on those names was “Sidwells’ Friends School,” the plural possessive emphasizing the Co-Principals’ joint interests.

The Sidwells soon embarked upon a plan that would allow their institution to begin to make the transition from an urban to a suburban school. In 1911, they purchased a Dutch Colonial house and grounds at 3901 Wisconsin Avenue from the Washington School for Boys. While the property served at first as the Sidwells’ private residence, it would soon be used by I Street students for athletic and recreational activities.

By the mid-1920s, the Wisconsin Avenue campus was no longer used exclusively for recreation and sports. A new building called the “Suburban School” (housing primary grades) was constructed from timbers allegedly taken from Woodrow Wilson’s inaugural viewing stand. Other portions of the Friends School academic program would soon be relocated from I Street to Wisconsin Avenue.

With the advent of the Jazz Age, the School’s program and learning community had developed several distinctive aspects, including an emphasis on a high-quality college-preparatory academic program and college placement; a commitment to co-education that included active encouragement of girls to study science, mathematics and industrial arts as well as to participate in sports and physical education; cultivation of enrollment from Washington, D.C.’s political and diplomatic communities (thus creating a geographically and ethnically diverse student body); a talented and dedicated faculty, including a substantial number of college-educated women; and an ongoing identification with the Society of Friends that was not formalized by any tie with a monthly or yearly meeting.

The death of Frances Haldeman-Sidwell in 1934 convinced Thomas Sidwell of the need to take certain actions to secure the future of the School. In prelude to the 1934-35 school year, “The Sidwell Friends School” was incorporated as a non-profit institution under a Board of Trustees. The Board’s by-laws stipulated that a majority of its members must belong to the Religious Society of Friends. In addition, Thomas Sidwell, in his will, identified a group of 24 veteran teachers, two grounds managers, and 11 servants among whom the value of the School’s property was to be divided if the School should fail. Despite the tough times of the Great Depression, the School survived.

When Sidwell died in 1936, the institution he had founded 53 years earlier was ready to be guided by the trustees and Headmaster Albert E. Rogers. Within two years, the I Street campus was sold to Doctors Hospital and all operations were consolidated on Wisconsin Avenue.

Sidwell Friends benefited greatly from the District of Columbia’s dynamic growth during World War II. At that time, the School pioneered the development of a fifth-through-eighth-grade Middle School that was among the first in the country. Sidwell Friends School’s first building campaign led to the construction of a separate Middle School building in 1950. In 1955, the School sold playing fields on the west side of Wisconsin Avenue (where McLean Gardens, Fannie Mae, and 4000 Wisconsin now stand) to finance the purchase of an adjacent historic structure known as the Highlands. This building, constructed between 1817 and 1827, was soon renamed Zartman House in honor of Helen Zartman, a key aide to Thomas Sidwell.

Sidwell Friends continued to grow in the 1960s. The School purchased the Longfellow School for Boys in Bethesda, Maryland, and moved its primary grades to that location on Edgemoor Lane in time for the 1963-64 school year. The purchase of the Edgemoor Lane property for a Lower School was directly connected to the demolition of the Sidwells’s Dutch Colonial, which was then being used for high school classes. In order to make room for the construction of a new, modern high school facility, the old Suburban School was razed and its primary age students moved to Bethesda. The Upper School building opened during the 1964-65 academic year.

It was not until 1981 that the School again engaged in another major construction project. In that year, the Kogod Center for the Arts was built in anticipation of the School’s centennial celebration. During the summer of 1997, a major remodeling of the Upper School, involving demolition of the Goodwin Memorial Library, was underway. That fall, the reconfigured Earl G. Harrison Jr. Upper School Building opened with the new Richard Walter Goldman Memorial Library inside its walls.

In 2004, a “green” renovation of campus facilities began with the retrofitting of Zartman House with a geothermal heat pump system. The construction of a new Middle School building followed two years later with renovations and additions to the shell of the original 1950 Middle School. The newly renovated structure became the first LEED Platinum K-12 school building in the country on the basis of its innovative green technologies. In 2007, on the Edgemoor Lane campus, a new gym and an addition to the Groome building demonstrated Sidwell Friends’ continued commitment to sustainable architecture. Work was completed in 2010 on a partially underground athletic facility on the site of Sidwell Friends’ old football field. In 2011, the Kenworthy Gymnasium was renovated and now houses the Robert L. Smith Meeting Room and arts classrooms.

To purchase a copy of our school history, The Long Conversation: 125 Years of Sidwell Friends School, please visit the Fox Den Cafe and School Store on the Wisconsin Avenue campus.


1859 Thomas Sidwell is born in Johnsville, Maryland.

1883 Friends Select School opens its doors in the1800 block of I Street NW, with founder Thomas Sidwell as principal.

1887 Former Friends Select teacher Frances Haldeman marries Thomas Sidwell and becomes co-principal.

1889 Malcolm Clephane becomes the first student to graduate from Friends Select.

1907 President Theodore Roosevelt delivers commencement address.

1910 Thomas Sidwell purchases property on Wisconsin Avenue as a residence.

1934 Frances Haldeman Sidwell dies. Thomas Sidwell reorganizes the School into a non-profit corporation under a Board of Trustees, retaining complete administrative control through the time of his death.

1936 Thomas Sidwell dies, after 53 years as the guiding force behind the School. Mr. Sidwell leaves his estate in the care of the Board of Trustees. The Trustees are given three years to determine if it is feasible for the School to continue operation. Otherwise, the School is to be sold and its proceeds distributed among 37 specified faculty and staff members.

1938 The I Street campus is sold to Doctors Hospital, and all classes and activities are consolidated onto the Wisconsin Avenue campus.

1949 Walter Gilbert (1980 Nobel laureate in chemistry) graduates.

1955 The School sells land across Wisconsin Avenue and purchases The Highlands, renaming it Zartman House.

1956 The first African-American student, Jeffrey Mazique, is admitted to Kindergarten.

1963 The School purchases the Edgemoor Lane property for the Lower School.

1964 The High School building (formerly the Sidwells’ residence) is demolished and a new edifice is constructed.

1983 The School celebrates its 100th anniversary.

1995-1998 The Friends Stand Up campaign raises $15.8 million, including the first million-dollar gift to the School.

1997 (Spring) President William Jefferson Clinton delivers commencement address.

1997 (Fall) The Earl Harrison Upper School Building and the Richard Walter Goldman Library open.

2006 The new LEED Platinum Middle School Building opens.

2007 A LEED Gold gym and an addition to the Groome Building are completed on the Lower School campus.

2008 The School celebrates its 125th anniversary.

2010 The football field is transformed into a LEED Gold Athletic Center with an artificial turf field on the roof.

2011 The Kenworthy Gymnasium is converted into a LEED Platinum Quaker Meeting House and Arts Center.