Edwin Sanborn Drowne Sr. was born on 4. Jul. 1876 at Newton Highland, Massachusetts. He was the son of
Edwin Drowne and
Rose Ellen Sanborn. Edwin Sanborn Drowne Sr. married
Ethel Mary Hasbrouck, daughter of
Vernon Hasbrouck and
Annie Irene Cross, on 15. Jun. 1908. Edwin Sanborn Drowne Sr. was shown in the census on 30. Apr. 1910 as an investor.
Edwin Sanborn Drowne Sr. and
Ethel Mary Hasbrouck appeared on the census of 30. Apr. 1910 at Newton, Middlesex County, Massachusetts; 1 child, 1 living.

Edwin Sanborn Drowne Sr. was shown in the census on 2. Apr. 1930 as a bank Vice President.
Edwin Sanborn Drowne Sr. and
Ethel Mary Hasbrouck appeared on the census of 2. Apr. 1930 at Newton, Middlesex County, Massachusetts; real estate value 13,000.00. Edwin Sanborn Drowne Sr. died in Apr. 1968 at Newton, Middlesex County, Massachusetts, at age 91.