Many counties went decades without a flag, until a certain event, such as a local sesquicentennial or the American bicentennial, spurred the creation of a flag.
Colonel George Mercer Brooke Jr. was also President of the Stonewall Jackson (Jackson had been an educator at VMI) Area Council of the Boy Scouts of America, member and officer of the Rockbridge County, Virginia Historical Society, and chairman of the VMI Sesquicentennial Committee.
Throughout his life he wrote a considerable number of choral pieces which are still being programmed, including a Te Deum written on the occasion of Oberlin's sesquicentennial for the Oberlin College Choir and Robert Fountain.
In 1979 he was honoured with the bronze tablet for 1926, set into the footpath along St Georges Terrace, Perth as part of the WAY '79 sesquicentennial (150th anniversary) celebrations of the colonisation of Western Australia by Europeans.
Representative Sol Bloom, the Director General of the United States Constitution Sesquicentennial Commission, first proposed that the painting be commissioned in 1937 as part of the 150th anniversary of the Constitution.
To highlight the Texas Sesquicentennial celebration, a red, white and blue opening number, a Texas Medley of song, and a Civil War battle scene were added.
In 1997, Crowley discussed preparing a Seattle-King County historical encyclopedia for the 2001 sesquicentennial of the Denny Party.