Since rdr1 was made before sadie and Charles didn't exist but I guess story wise the bureau didn't allow John to communicate with them

I was just talking story wise Charles and Sadie would have been alive by the events of red dead one even though game wise they didn’t exist

Charles was in Canada and sadie was in South America so I guess Ross and the bureau taking John's family prevented him from asking for help either that or John didn't wanna risk them dying after what happened in American venom