Jesse and Susanna Deemer are in Lancaster county, PA, in 1820, 1830, and 1840 census. I do not have any parents or siblings names for Jesse Deemer. !820 census shows Jesse Deemer ( Jese Diemer ) household of 4 persons; Jesse, Susanna, Elizabeth, and an older unknown male. Could he be a father or father-in-law to Jesse? Having difficulty locating Deemer households in Lebanon or Lancaster county during pre-1850 census. Perhaps, Jesse and Aaron Deemer are related. Good luck and keep searching.