...one to add to your list, for Dayton (actually Kettering), OH:  Bob Pool Motors, 2817 Wilmington Pike. I knew it well because I hung out there as a teenager. He was in business from ca. 1961 through the bitter end in ‘66. He started the dealership, he told me, because he loved Studebakers and thought no one in Dayton sold them properly. He never seemed to have much business. He also owned, in later years, a pristine 1953 Commander Starliner in the dark upper/light lower green two-tone and showed it at local car shows. Very nice man.
 
A Frisch’s Big Boy has occupied the site since about 2006.

Best regards,
 
Thom Moon
Cincinnati, OH