Isaac F. Hertzog was born October 30, 1857 in Fleetwood, Berks County, Pennsylvania to William Hertzog and Hermina Snyder or Schneider. He took over the photography business from his father, William, as shown below in an excerpt under the heading of Photographers found in a 1940 Nazareth, PA Bi-Centenniel publication:

“Edward Hummel operated a photograph gallery in Nazareth at what is now 12 Belvidere Street during the Civil War and was followed by William Hertzog and then the latter’s son, Isaac Hertzog, who continued the business at 49 South Main Street until 1922, when it was bought by Harvey Dietz who is the present proprietor.”

Isaac married Sarah Melinda Young about 1883 and then Carrie Sutton, sometime after Sarah died (1934) and prior to the 1940 census. City directories only show one listing, in the town of Easton for Isaac, that of Isaac F. Hertzog, mental healer, address 741 Ferry. A March 23rd, 1914 newspaper article in The Allentown Leader, confirms that this is the same person. Isaac Hertzog, “photographer and faith healer,”  and he was unfortunately having financial problems at the time, and had declared bankruptcy.  Mention of Isaac Hertzog can also be found in reference to the Grace Bible Fellowship Church of Nazareth, of which our subject was a regular attender, and to which he made several generous contributions. At this time we have one example of his work, under the prior post,  Mother And Sons. Below is the stamp that appears on the back of the postcard.

Isaac F. Hertzog died June 1, 1940 in Nazareth. (The death certificate was incorrectly filled out with his place of birth as Fleetwood, New Jersey and Bucks County, Pennsylvania. And of course that should be Fleetwood, Berks County, PA.)

Sources:  Pennsylvania (State). Death certificates, 1906–1963. Series 11.90 (1,905 cartons). Records of the Pennsylvania Department of Health, Record Group 11. Pennsylvania Historical and Museum Commission, Harrisburg, Pennsylvania. (Ancestry.com)

Original data: Pennsylvania (State). Death certificates, 1906–1963. Series 11.90 (1,905 cartons). Records of the Pennsylvania Department of Health, Record Group 11. Pennsylvania Historical and Museum Commission, Harrisburg, Pennsylvania. (Ancestry.com)

The Allentown Leader, (23 March 1914.) p. 12. Web accessed May 10, 2015. (Newspapers.com.)

Hoyle, Ronald.  “Infinite Grace:  The History of God’s Grace at Grace Bible Fellowship Church of Nazareth, Pennsylvania.”  Nov. 14, 1998. Web accessed May 10, 2015. (bfchistory.org)

William Hertzog:  Year: 1880; Census Place: Bushkill, Northampton, Pennsylvania; Roll: 1161; Family History Film: 1255161; Page: 334D; Enumeration District: 067; Image: 0068. (Ancestry.com)

Year: 1920; Census Place: Nazareth Ward 2, Northampton, Pennsylvania; Roll: T625_1609; Page: 2B; Enumeration District: 141; Image: 516. (Ancestry.com)

Two Centuries of Nazareth, 1740 – 1940. Nazareth, Pennsylvania, Bi-Centenniel, Inc. (1940):  p. 254. Web accessed May 10, 2015. (Ancestry.com)