my 2-ggrandfather was listed as Jonathan E Garley in census of about 1860. He was shown as married to Georgianna (maiden name not given) and father of 2 daughters and one infant son. One daughter, "Ocea" or Oceanna was my greatgrandmother and married to Allison Virgil Pusey. The infant son was listed I believe as John.
Since John is a common nickname for Johnathan, it is possible this is the same person. I've found him listed in two census' and in one he was listed as a hunter, the other listed occupation as farmer (if memory serves) My computer is in shop for upgrades right now and I don't have the info readily available. Try checking the 1850 or 1860 time frame census for I believe Delaware or Maryland. Hope this is of use. I've found my GARLEY ancestors elusive to trace.