I have seen references to Jeremiah and Eliza Fezler of NJ, but I have never found any documentation of them being Philip's parents. So, this is good news from you!....where ever did you find the proof?
I don't have the marriage date of Philip Fezler and Louisa Sheffer, but I have thought it must be in NJ, since their first child, Edward Clinton, was born in NJ. Your reference to an Edward S. Fezler, who is buried in the same cemetery as Jeremiah, as an 18yo, makes me wonder if Phillip named his first son after his brother who had died(?). Louisa died on 16 April 1869 and is buried in Blue Earth MN.
Phillip then married Julia Albina Bacon (b. 1828, d. 20 March 1890), marr on 21 May 1870 in Blue Earth, Faribault Co MN.
Phillip married a third time, to Caroline Ann (Barrows) Billings, but I don't have the date. This marriage was short-lived, involved land disputes, and Caroline moved to Muscatine Co IA where she spent the remainder of her life (I have her obit).
Also have a death notice of Phillip Fezler, who committed suicide by drinking bedbug poison.
I have a photo of Phillip (not the greatest, but OK)
If you are interested in this, I would be happy to correspond, and send copies of anything I have. You can use my home email: jenstad..."at" symbol...pro-ns.net
I'm not a direct descendant of the Fezler line, but my great-grandmother's sister married Edward Clinton Fezler.