Gazlay Family History

FamilyJohn Preston ‘Jack’ Mailler, Jr.


FatherJohn Preston Mailler (25 September 1890 - ca. September 1960)
MotherMargaret Brown ‘Reta’ McGregor (16 February 1893 - ca. May 1975)

Personal Information

Record Created: 11 November 2009; Last Edited: 2 December 2012 
NameJohn Preston ‘Jack’ Mailler, Jr.
Born 5 June 1918 in Madison, Morris County, New Jersey1, 2, 3, 4
Married 7 June 1941 in Hanover, New Jersey to Mary DeGroff3, 4
Died 27 June 1994 in Escondido, California3, 5


Spouse 1FamilyMary DeGroff (daughter of Arthur Dashiell DeGroff and Helene Tonkin)
Born 4 January 1918
Married 7 June 1941 in Hanover, New Jersey to John Preston ‘Jack’ Mailler, Jr.
Children of John Preston ‘Jack’ Mailler, Jr. and Mary DeGroff:
+1.FamilyBarbara Lee ‘Bobby’ Mailler
Born 11 February 1943
Married to Nicholas Arnold Knapp
+2.FamilyJohn Preston Mailler III
Born 8 August 1944
Married 21 April 1972 in Washoe County, Nevada to Phyllis M. McCraw
Married to Donna Jean McMillan
3.FamilyPeter DeGroff Mailler
Born 12 March 1947


  1. U.S. Federal Census, 1920, New Jersey, Essex County, Orange, Enumeration District 299, Sheet No. 7B, family of John Mailler (28, New Jersey, machinist, Edison); wife Margaret Mailler (26, New Jersey); daughter Helen Mailler (3, New Jersey); son Jack Mailer (1, New Jersey); border Wilson Roby (30, New Jersey, clerk, grocery store). They are living next door to Margaret’s parents.
  2. U.S. Federal Census, 1930, New Jersey, Morris County, Borough of Madison, Enumeration District 14-30, Sheet No. 5B, family of John P. Mailler (39, New York, engineer, public utility, first married age 23); wife Margaret B. Mailler (34, New Jersey, first married age 19); daughter Helen J. Mailler (14, New Jersey); son John P. Mailler Jr. (11, New Jersey); son William D. Mailler (9, New Jersey).
  3. Obituary, San Diego Union-Tribune, San Diego, California, John P. Mailler, Jr., 27 June 1994
  4. Genealogy, Rootsweb (website), The Degroff’s and Related Families.
  5. Social Security Death Index (SSDI), Rootsweb (website). John P. Mailler, no. 144-07-3188