While I have used some newer colored photos for VG covers, mostly I have used older B&W photos or photos that were themselves covers of magazines or comics or contained on such covers.
examples below: 2018's original is a "My Little Margie" comics cover; 2026's original is, I'm guessing, a family photo circa 1900; 1981's originals are movie stills from the late '50's or earlie '60's; 2002's original is an early '60's "Australian Women's Weekly" magazine cover; 1990's original was an interior illustration for a story in a 1930's (from the fashions) magazine; 2029's original, anyone's guess, but probably 1940's or '50's I have also used old advertisements containing photos.
Can I continue to use such material? If so, I will refrain from using any post 1960's photo's in the future. Also my "Miles tribute" captioned photos thread in the Forum can be deleted if you so desire?
My Little Margie comic
1900's family photo - I think