I have a few Donaldson's from Butler and across the border in West Deer Township, Allegheny co. John Donaldsons m. Jane Clendennen lived in West Deer and one son, b between 1820 and 1825. (This son possibly the James who was married to Nancy Porter. Their son John Porter Donaldson b 3/13/1859, West Deer Township, Allegheny county) Porter is a pretty large family in West Deer. Many of these famlies moved back and forth between Allegheny county and Butler county. Robert Donaldson m. Isabella Clendennen eventually removed to Pittsburg by 1850, had one son John who was a confectioner. The above John and Robert are siblings as well as Isabella and Jane. Lori Clendennen Greenland