They are accused of stealing and passing about 30 checks totaling around $100,000 last year, Kettering Detective Vince Mason said.
Craig A. Ross, of Dayton, also faces charges in connection with the mailbox thefts, but a warrant was not filed for him and a not guilty plea was entered in his case, according to records.
George, 64, and Ross, 29, were indicted on forgery and theft charges, while Kinder, 30, and Yates, 26, were indicted on grand theft and forgery charges, court records show.
All of the indictments were issued March 8, according to court documents. The crimes occurred between June 2 and July 10, 2021, the indictments say.
Kettering police began investigating reports of check theft in July 2021 after checks totaling $24,000 were fraudulently altered and cashed in the region.
Those cases involved about 15 victims who dropped checks in outdoor mailboxes at the Forrer Boulevard and East Stroop Road post offices in Kettering, Mason said earlier.
The Kettering stolen checks ranged from $1,625 to $2,210, according to Mason. He said the suspects took the checks, changed the name of the payee and the amount of money the checks were written for, and were then able to cash the checks.