I have a Hawk in Rush County at least until 1840. Henry Hawk and Jane Foster and 5 children 2 girls I don't know thier names. The other ones were William who came west in 1845. John who came west in 1851 (I believe) and Mary ellen Hawk who married in Council bluffs Iowa in 1848 then pottowattamie county at the time. Hope this helps. maybe there is a conection let me know.