William Bullard's entry at FindAGrave showed where he was buried in the Flushing Cemetery.
Bullard-William L. Bullard, age 62 years, died Tuesday, September 18, 1934 at his home in Montrose. Funeral service will be at 2 p. m. Thursday, September 20, 1934, from the residence. Rev. Burt Angsbury officiating. Burial in Flushing, Michigan. Relatives surviving are: Wife; 2 sons, Foster of Montrose and Lloyd at home; 5 brothers, Wesley of Burt, Michigan, Frederick of California, Tunis of Minnesota, Schuyler of Minnesota, Asa of Montrose; 2 sisters, Mrs. Alice Parkhurst of Detroit, Mrs. Hattie Morris of Flint; 3 grandchildren. Arrangements by H. E. Wheeler Son, Flushing.
According to the 1900 MI census, William Bullard was born in August 1872 in New York. He had been married to Sarah [Brown] (b. March 1871 in Michigan) for 6 years and had a son Foster (b. July 1894 in MI).
Note: I am not related to the Bullards and have no further information.