Peter Ziegler and Sarah Fullmer of Ashland Co, Ohio

I am searching for family history/information about Peter Ziegler (b1806, Pennsylvania?) married to Sarah Fullmer (b1811,d1892). Family stories suggest that they were both born in Pennsylvania but at some point came to Ashland Co., Ohio and were married (abt 1843)and lived in the Ashland Co,Ohio area. Their daughter, Sarah Ziegler (b 10July1832, d 30 Dec 1862)was married to Michael Ohl (b 1821, d 1878) and they also lived in the Ashland County, Ohio area. Sarah and Michael Ohl are my 3ggparents. Thank you for any help you can give.