I am following the trail by Gylynne Heiner Hone that Patrick once lived in Pennsylvania and from Nancy Day that he might have used the spelling Craughn. This is a later than Patricks time wedding found in family search historical records. Could Elizabeth be related to Patrick?
Let's coordinate if you feel like searching these historical records so we don't duplicate. There is a lot to go through.
"Pennsylvania, County Marriages, 1885-1950," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/KHFQ-C35 : accessed 15 Mar 2014), Elizabeth Craughn in entry for Edward Paul O'Connor and Margaret Helen Higgins, 18 Jun 1936; citing , Luzerne, Pennsylvania, United States; FHL microfilm 2224602.
|Name:||Edward Paul O'Connor|
|Titles and Terms:|
|Event Date:||18 Jun 1936|
|Event Place:||, Luzerne, Pennsylvania, United States|
|Birth Year (Estimated):||1905|
|Father's Name:||Edward T|
|Father's Titles and Terms:|
|Mother's Name:||Elizabeth Craughn|
|Mother's Titles and Terms:|
|Spouse's Name:||Margaret Helen Higgins|
|Spouse's Titles and Terms:|
|Spouse's Birth Year (Estimated):||1911|
|Spouse's Father's Name:||James W|
|Spouse's Father's Titles and Terms:|
|Spouse's Mother's Name:||Mary Mcnamara|
|Spouse's Mother's Titles and Terms:|
|GS Film Number:||2224602|
|Digital Folder Number:||004833150|