Attached is a link to Cecelia's obituary. The link is for Google's newspapers archives, The Delmarvia Star; Wilmington, Delaware; issue of 19 September 1920. Her obituary is on page 10 [or 6 of 35 if using the page counter on the Google page]. Copy and paste the link into a browser window. If the image appears jumbled, click the magnifier on the frame around the image and it will reassemble.
http://news.google.com/newspapers?nid=VaBbNeojGYwC&dat=1...If you haven't seen it, it contains some more names that may be helpful.
I'm descended from Patrick McGonigal, who was born in Culdaff, Donegal. He died in 1906 at Squirrel Run, near Henry Clay. He was a worker at the du Pont Hagley's powder yard. I've never been able to make a connection to other McGonigals in the area (e.g. Cornelius).
Any problems with this, please let me know.
Take care,
Bill McGonigal