Looking for ancestor & decendant info for James B McAllen born abt 1813 in North Carolina. 1850 Union County, Illinois Census gives the following info:
McAllen, JB 37 Male Physician valued at $300 born in NC
McAllen, Lucinda 37 Female Keeping House born in NC
McAllen, John 13 Male in School born in KY
McAllen, James 11 " "
McAllen, William 7 " "
McAllen, Walker 1 Male born in Illinois
McAllen, Francis 20 Male Farmer born in TN
McAllen, Sarah 21 Female born in IL
(Francis and Sarah married within the year)

We know for sure that at least James changed the last name to McCallen