Yes Quincy Porter (1897-1966). There's probably more..
Ei-Q died in 1960.
Q was shot and died.
Harold Q. Masur died in 2005.
Byron Q. Jones died in 1959.
James Q. Wilson died in 2012.
George Q. Morris died in 1962.
Richard Q. Twiss died in 2005.
John Q. Tufts died in 1902.
William Q. Dallmeyer died in 1908.
John Q. Tilson died in 1958.
John Q. Underhill died in 1907.