My Third Great Grand Father via his oldest child and daughter Sarah West (Atwell) Erridge.

John Atwell was the father of fourteen children, eleven survived to adulthood: Sarah West (Atwell) Erridge McCoy, Anne (Atwell) Webb, John Earl Atwell, Mary Nancy Farley (Atwell) Headley, William H. Atwell, Francis Farley (Atwell) Hoover, Harriet (Atwell) Stober, Richard Noler Atwell, Ellen (Atwell) Aldridge, George Atwell, and Elizabeth "Lizzie" (Atwell) Jones.

All of the above children (except for the last three) were born in or near Ramsgate, County of Kent, England. Of the last three, Ellen was born in Pennsylvania shortly after her parents immigrated from England, George and Elizabeth were both born in Wapello County, Iowa.

1901 excerpt from ARTICLE: Mrs. Sarah West (Atwell) McCoy ---
"John Atwell was born in England, February 20, 1812, and was first a baker by trade, but later applied himself to agricultural pursuits. He now resides in Kansas. He married Mary F. Doughty, who was born in England, and is deceased. They became the parents of the following children: Sarah W.; Anna ; John ; Nancy ; William ; Frances ; Harriet ; Richard ; Ellen ; George ; and Lizzie."
SOURCE: History of Wapello County, Iowa and Representative Citizens; copyright 1901. Page 312
found online at: [NOTE: two line address]
http://www.beforetime.net/iowagenealogy/wapello/
HistoryOfWapelloCountyIowaAndRepresentativeCitizens1901/F8.html

OTTUMWA COURIER, Ottumwa, Wapello Co., Iowa
January 27, 1908, Page 5, Col. 3
FUNERALS
"The remains of the late John Atwell, former resident of this county but late years a resident of Alden, Kansas, were brought to this city Saturday and the funeral service held from the residence of his grand-daughter, Mrs. Ella McCoy, 308 Hamilton Street, yesterday morning at 9 o'clock, conducted by Rev. E. J. Shook. Interment was in Round Point Cemetery."