There is a marriage record for a Paul J. Jackson to Beulah B. Brewer in Marion Co. Indiana, on 02-09-1920.
Name: Paul J Jackson
Spouse Name: Beuhah B Brewer ***Beulah
Marriage Date: 9 Feb 1920
Marriage County: Marion
Birth Date:
Age: 26
Source Title 1: Marion County, Indiana
Source Title 2: Index to Marriage Record 1916 - 1920 Inclusive Vol
Source Title 3: Original Record Located: County Clerk's Office Ind
Book: 108
OS Page: 2071

WWI - Returning from France 1919 Manifest

1920 Census: 21 years old, at home with his mother and three siblings. Salesman listed as occupation.

He reportedly died from exposure to mustard gas when he served in WWI.(lighting)

1930 Census Beulah has remarried and son Paul is living with her and her husband.