You Sir/Madam, just uncovered one of the mysteries of the Universe :)
That is absolutely my John Lounbury/Lounsberry. I just finished going through the microfilm for St. Pauls/Grace last night. A record of parishioners indicated both the Cramond and Lounsbury families living at South St. Pauls & Stone Streets.
The microfilmed records are very troubling to me otherwise. I realize the two churches are combined, but many of the records I am looking for are not found. Even though it says it includes births through 1844, it stops around 1834 and does not include the birth of their daughter Lucy Jane Lounsbury circa 1835/36. It also does not include her marriage to William Morgan circa 1853 even though Lucy is found in a list of April 1854 Communicants already listed as "Mrs. Lucy Morgan". I'll be heading back to view the film again and will be mentioning the discrepancy in what is supposed to be on the film vs what really is.
Thank you for you help. It's opened an entire new set of possibilities!