Hi Pam,
Isaac Alford was my gt x 2 grandmother's (Sarah Emma 1831-1926) younger brother. I have a lot of information on Isaac on my tree on Tribalpages http://dianefentontree.tribalpages.com You are welcome to contact me through Tribalpages so I can give you access to my tree. I would be interested to know what other information you have on the Alfords, particularly Sarah.
Cheers,
Diane
Australia