I'm quite sure (and still trying to prove) that I descend from your Mary Cleneay's brother, William, (son of William and Maria (SPRINGER). My William was baptized in 1719 at Holy Trinity (Old Swede's) Church, in Christina (now Newcastle) DE. I believe your Mary was born (not married) in 1726 in Newcastle, DE. I haven't noticed her marriage listed in the Old Swede's records online, so she may have married James in PA.
I live in PA, just over the state line from DE, and didn't know until I had lived here for 10 years (I'm from the midwest), that I had ancestral history in my back yard. I plan to do some serious research at Old Swede's, the DE Historical Society, Newcastle library, etc. I've been to Historic Newcastle and all the beautiful old buildings, including Old Swede's, but that was before I even knew that the Cleneays and Springers were part of my line.
I don't know if any of the Cleneays deliberately used the alternate spellings we see, but the name does lend itself to misspelling and mistranscription! I have seen it spelled CLENEAY, CLEANY, CLEANEY, CLENNY, CLENNEY, KLENNY, CLENNAY, CLENEY, CLEANEAY, CLINNY, CLEENY, CLEANAY, and even CLEMCY, CENSAY and CLENCAY (in transcriptions).
I recently discovered that Winterthur, the beautiful duPont estate and gardens that I visit regularly, was bought from the "CLENNY" family in the late 1700s or the early 1800s, and the creek that runs through it is called "Clenny's Run".
My Cleneays migrated from DE to NC, and then up in KY in the early 1800s and then to southern OH. (I believe they went to NC around the 1760s). My records show that your Mary and husband went to NC at some point, too. Where did they go from there?
I'd love to compare and share information with you.
Ann