Isaac and Harriet were my great great grandparents. Their daughter, Amber was married to my great grandfather Clifford Fernald.
They are all buried near each other in the same cemetery in West Rockport Maine.
Here is some info that I received from Christine Rike
Subj:Re: 1850, 1860, 1870 St. George Federal Census
Here is what I have so far from census records. The dates are "about" because the age at the time of the census is given:Stephen Maxwell b. abt 1810 m. Susannah Whittle b. abt 1813 d. of Samuel Whittle b. abt. 1768, d. after 1850 (was living with Stephen in 1850) children: 1. Mary b. abt 1834 2. Martha b. abt 1836 3. Hannah b. abt 1839 4. Harriet b. abt 1842 5. William J. b. abt 1843 6. Joshua H. b.Dec.29,1843 m. Hannah Lovett b. Dec.4,1854 7.Stephen H. b. abt 1849 m. Melissa Pierson b. abt 1855 8. John H. b. abt 1851 m. Susan Stone b. Feb 15, 1846 9. Charles M. b. abt 1854
end of letter.....
I lost my favorite places but I believe Chris has a web page (Watts Rike) with some St George info.
Maxwell was sometimes shortened to Maxie, Maxcey, MAXY, etc. the LDS and other internet sources have Susanna Yarby, Susan EURLY and Eurby as Stephen's wife. So she may have been married before she met Stephen.
I have not proved Stephen's parentage, nor explored much on Susan yet.I believe Stephen may have come from the Belgrade,Kennebec area of Maine, If so I suspect that he may be the son of Jeremiah Maxwell,Maxey. Who I suspect was the son of Gershom Maxwell and Sarah Littlefield. But I have not proved this connection as yet. There are a few Stephen Maxwell's in the Maxwell family of that area.