I am Robert B. Jessen My mothers name is Mary Mattice Jessen.  In your
Chart under Jacob Henry Mattice b. 12-21-1843.  You have only one
Child for Jacob.  According to my mother Jacob and Wealthy Ann Mann
had a child Named John B. Mattice b. 6-25-1879.  John B. Mattice Married
Eloise Daring b. 2-17-1881 they had a child named Page Goodman
Mattice b. 1-4-1904.  Page Married Lucy E. Hale b. 3-7-1908  They lived in
Shelburne Falls MASS.  They had three Children John Martha and Mary
Mattice b. 5-21-1941 whom married my father Robert B. Jessen SR. 
They had seven children.  Jeannette M Woods, Robert, Scott, John,
Thomas, James and Lucy Jessen. Jeanette the Oldest has two children
Ryan and Becky woods.

I hope this helps fill in the blanks a bit.  I have a web page at 
http://www.mindspring.com/~rjessen it has a link to a Mattice family tree
that I have authored.

Robert B. Jessen JR.   
[email protected]