I am connected to your line via Rosanna Heckman who married James Scott Oiler, Oyler on 11-5-1840. James brother John married Rosanna's sister Sarah.
Also, my GGGrandmother was Harriet Oiler Carl. Her mother was married to an Oiler, but we don't know which of Andrew's sons was her father. He died in a roofing accident before she was born. I have the last will of her grandfather who die din September, 1847. He is your Andrew who married Susannah
Sweetwood. Harriet is their granddaughter. Andrew and Susannah Sweetwood Oiler are buried in Doubling Gap, Cumberland Co, PA
We have the names of some of their children, but we are having problems finding which one was the father to Harriet.
Do you have any information on which son was Harriet's father?
Rosanna and Sarah's father and mother were Philip Heckman and Susannah Barrick Shover Heckman.