There is an Elijah Acker that lived in Rush, Monroe Co, NY that was living in 1840. He was in the 1840 census. Could your death date be wrong or could this be a son of Elijah? I have in my notes that the Elijah living in Rush was married to Nancy Bell. They lived next to Alexander Acker who is my gggrandfather. Could they be related. I also have in my notes that Nancy Bell Acker died at LeRoy, Genesee Co, NY.