Gen of Potter Fam Book by CEP on CD & Inexpensive
You can buy "Genealogies of the Potter Families...." by Charles Edward Potter on CD at the WebPage of the online store "Timeless Genealogies,"
I paid around around $16 for it about 6 months ago at their site. (Potter P53 358). It is a very good copy as far as I can tell.
You should check this out!