Hanson Family History

According to family lore, my Hanson family started out as the Johannsen [or variant spelling] family.  This has not been confirmed by me though.

The earliest Hanson I have found is George Hanson born about 1730 possibly in Ireland.  I have no wife listed for him, but I have 8 children.  This info was given to me by a distant relative, and where she got it, is unknown.

The Hansons were devout Quakers while in America.  My earliest confirmed Hanson would be George's son Elijah born 4 February 1749/50 and died 3 February 1802 in North Carolina.  He was married to Susanna Scruvine on 13 November 1779.

I have found most of my Hanson line in the Encyclopedia of American Quaker Genealogy.  The family moved from North Carolina to Ohio, then finally residing in Indiana.

There are a lot of gaps in my line, missing dates, spousal last names, etc.  One mystery I would like to solve is who my second great grandfather married after his first wife, Viola Healton/Helton, died.  Viola is my second great grandmother, but who was the mother to Joseph's other children?