Ernest Mark Breed was born on 6 September 1893 at Meadville, Crawford County, Pennsylvania. He married
Anna Marie Swift, daughter of
Rufus Worthington Swift and
Alice Thomas Weaver. He died in 1949 at Volusia County, Florida.
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Ernest Mark Breed appeared on the census of 11 February 1920 at a roomer with Fred Henney, Wesleyville, Erie County, Pennsylvania; listed as divorced. Ernest Mark Breed was shown in the census on 11 February 1920 as a dentist.
Ernest Mark Breed and
Anna Marie Swift appeared on the census of 5 April 1930 at North Warren, Warren County, Pennsylvania. Ernest Mark Breed was shown in the census on 30 September 1943 as a dentist.