Grim Sleeper No. 139 has a bit of interesting signage that says “The Mail Slot” and gives a phone number that appears to be 419-0395. I’m not able to locate this number or business, so I’m assuming it’s defunct. Does the “82” indicate 1982? A car in the background looks like a Volkswagen Beetle but otherwise identifying the cars will take more research.

ALSO

Grim Sleeper Nos. 4 and 52
Grim Sleeper Nos. 48-49
Grim Sleeper Nos. 51-53.
Grim Sleeper Nos. 56-57
Grim Sleeper Nos. 59 and 81
Grim Sleeper Nos. 75-78, labrets
Grim Sleeper Nos. 75 and 77, Kendreay
Grim Sleeper Nos. 96-96, Maxine
Grim Sleeper Nos. 141-142, Deborah B. Cleveland
Grim Sleeper No. 149
Grim Sleeper No. 166, Ms. D. Johnson