John Spencer, 8th Earl Spencer, who was Princess Diana's father, was straight.
John Spencer. He was the 8th Earl Spencer.
The historical figure John Dodd, a member of Parliament, is the only semi-famous John Dodd I can find, and there is no information about his sexual orientation.
John Poyntz Spencer Spencer has written: 'The red Earl' -- subject(s): Biography, Statesmen, Viceroys
John Heileman is straight.
no.
straight
he is straight.
John D. Rockefeller Sr. never publicly discussed his sexual orientation, but it appears that he was heterosexual.
George John Spencer Spencer has written: 'Private papers of George, second Earl Spencer, First Lord of the Admiralty, 1794-1801 volume II'
John Mahoney, best known from his role on Frazier, has not publicly stated his sexual orientation, though there are many rumours and speculation.
Isn't he gay?
John Maybury, the filmmaker, is openly gay.