From familysearch.org ..... his birth date is the sames as below on Find A Grave - November 22, 1890.
Coal miner and married to Nora Frances (marriage certificate below).
Name: Frank Postlethwaite Saunders
Event Type: Naturalization
Event Date: 1940
Event Place: , Raleigh, West Virginia, United States
Age:
Birth Date: 1890
Birthplace: Millom, England
Source Reference: Declarations of Intention, Petitions, 1940-1941, v. 11
GS Film Number: 1738219
Digital Folder Number: 004714209
Image Number: 01309
https://familysearch.org/pal:/MM9.3.1/TH-1-18238-18094-33?cc...**********
Date: 1927
Place: Raleigh, West Virginia, United States
Bride
Name: Nora Frances Dilley
Groom:
Frank Postlethwaite Saunders
http://www.wvculture.org/vrr/va_view.aspx?Id=11500770&Ty...May 20, 1927