The 1895 application for a marriage license by JOHN MULGREW to FRANCES QUINN (granted/signed April 26th, 1895 in Clearfield County, Pennsylvania) is a viewable image on Ancestry.com, under the database "Pennsylvania, Marriages, 1852-1968."
In this record, the bride and groom answered the questions: "Date of death of man's former wife, if any," and "Date of death of woman's former husband, if any."
John's entry was "none" (meaning that he had no previous wife who died), while Frances' entry was "Jany 31, 1890." So she had a previous husband who died on that date, and she was the widow "Frances Quinn" when she married John Mulgrew in 1895.
John's age was 34 and Frances was 27. Both gave their residence as "DuBois, Pa."
John Mulgrew's parents were "Jno. & Mary," and Frances Quinn's parents were "Jas. & Sarah."
If Frances was 27 or about that age when she married John Mulgrew in 1895, she was born about 1868.
In the 1900 census, counted in DuBois, Clearfield County, Pennsylvania, Frances was 35, born Scotland (no specific date), parents born Ireland, mother of 4 children with 4 living. Her husband John Mulgrew was 38, born Feb. 1862 in Scotland, a coal miner. His parents were born in Ireland. He had been in the U.S. for 12 years and was a naturalized citizen. Frances' immigration year was not given, but in most entries by this particular census taker, only the man's name has an immigration year or years of residence in U.S. With them were children Margaret, 4 (born July 1895), Mary, 3, John, 2, and Frank, 1, all born in Pennsylvania.
In 1910, "Fannie" Mulgrew was living as a housekeeper with the Rayburg family in DuBois. She was 42, widowed, born Scotland, parents born Ireland. She said (or at least it was recorded) that she had emigrated to the U.S. in 1892. She said that she was the mother of 7 children, with 7 living. Counted in the Rayburg household with her was her son Michael, age 6.
In the 1920 census, still living in DuBois, Fannie Mulgrew was 52, born Scotland, parents born Ireland, working as a janitor in a "public office." She had immigrated to the U.S. in 1892 and was a naturalized citizen (both her and her husband John Mulgrew's naturalization records would be important to research). With her were her children: Mary, 22, John, 21, Frank, 20, Walter, 18, James, 17, and Michael, 15. Also living with the Mulgrews was "Margaret Murphy," age 78, born Ireland, an aunt to head of household Fannie Mulgrew (there's an important family relationship to research).
There are many more details in these censuses and others up until Frances Mulgrew's death in 1950. I didn't see her 1950 death record, but you wrote that you << found that Frances died in Detroit Mi. in May 1950. But it wasn't the actual certificate. The only death certificate I could see was on their child Walter Mulgrew.>>
I'm not sure what you mean about finding when and where she died. Was this a newspaper obituary or in a family bible or what source? Anyway, if you already have it, you have whatever information it gives.
Regards,
Annie