There is a 1940 Census with William L son of William and Ruth. There is also a William W. Pascoe, son of William W. Pascoe and Isabelle Jenkins living in Newell, Fayette, PA in the 1930 and 1920 census of the correct age, but different middle initial?
U S Census, 1940 Ward 27, Baltimore City, Baltimore City, Baltimore City, Maryland
Citing this Record "United States Census, 1940," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/K7XB-SSP
head William Pascoe M 27 Pennsylvania (abt 1913)
wife Ruth Pascoe F 20 Washington District Of Columbia
son William L Pascoe M 2 Maryland
U S Census, 1930 Newell, Fayette, Pennsylvania
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head William W Pascoe M 47 PA/OH/PA
dau Anna Belle Pascoe F 19 PA/PA/ENG
son William W Pascoe M 16 PA/PA/ENG
dau Dorthey M Pascoe F 12 PA/PA/ENG
dau Ada Pascoe F 8 PA/PA/ENG
dau Ethel Pascoe F 6 PA/PA/ENG
U S Census, 1920 Fayette, Pennsylvania
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self William Pascoe M 35y ENG
wife Isabel Pascoe F 33y PA
son Leroy Pascoe M 13y PA
dau Annabel Pascoe F 8y PA
son William Pascoe M 6y PA
dau Dorthy Pascoe F 2y5m PA
Pennsylvania, County Marriages, 1885 – 1950
Citing this Record "Pennsylvania, County Marriages, 1885 - 1950," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/VF39-BW5
William W. Pascoe
age: 23 est birth year: 1882
Residence: Gillespy, PA
Marriage 20 Sep 1905 Washington, PA
spouse: Isabella Jenkins
age: 20 est birth year: 1885
Residence: Stockdale, Washington, PA
father: Issic Jenkins