Mary Melissa Dolley was born on 5 May 1893 in Providence, Rhode Island. Her parents were Albert M. Dolley and Marian S. Babcock.
https://www.familysearch.org/ark:/61903/1:1:F87C-BHF
Between 1915 and 1920, Mary M. Dolley managed to get married three times: 1) Harry Elmer Brown [1915], 2) Richard Richmond [1918] and 3) Walter Francis Mowry [before 1920].
1) https://www.familysearch.org/ark:/61903/3:1:S3HY-6QP9-34?i=518
2) https://www.familysearch.org/ark:/61903/3:1:33SQ-G1BF-ZS4?i=185&cc=1928860
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Something's fishy. On the second marriage record for Mary M. Dolley it says this was her first marriage.
On the 1915 marriage record with Harry Elmer Brown, age 29, it lists his parents as William and Mary, and that he was born in Putnam CT.
In the 1900 census for that city, William E. and Mary A. Brown had several children, one being Harry E. b. Aug 1884, CT. His siblings and their birth years: Frank E. 1873, Ella L. 1974, Edith F. 1887, Mabel N. 1890, Willie 1880.
In the 1910 census, Putnam, William and Mary only have Frank and Ella with them. I couldn't identify Harry in another household.
In the 1915 Rhode Island census (familysearch) I couldn't find Harry. Mary Dolley was with the Babcock family.
In the 1920 and 1930 census I couldn't identify a Harry Brown b. about 1884, Connecticut.
Maybe other researchers will have better luck than I did.
Since Mary remarried in 1918, possibly Harry was dead by then.