Georgia State University announced last week the launch of the Johnny Mercer digital collection, about 1300 images from the Johnny Mercer Papers and Johnny and Ginger Mercer Papers.
(Johnny Mercer was a singer/songwriter who was active from the 1930s up until the 1970s. He wrote some songs which might sound familiar to you, including Jeepers Creepers, You Must Have Been A Beautiful Baby, and One for My Baby (and One More for the Road))
I couldn’t find a direct link, but I did do a search for Mercer and ended up here, with 1243 results. This is a search result; use the query box in the upper right to do more detailed query like Mercer guitar or Mercer television. You could also try names of contemporaries — I found several pictures of Johnny Mercer with Bing Crosby and one with Nat “King” Cole.
Search results have a thumbnail and a little context; click on the thumbnail for a much larger picture and some more information about it.