John Freiderick Japp (1836-1916)

Japp Family Genealogy

 Fritz William Japp (1907-1984)

A past search on the website of Ellis Island shows that from the time they started keeping records in 1892, a total of 96 people with the last name of Japp arrived in America through Ellis Island. My ancestor arrived before that, so I'm sure that several others also arrived before 1892. I'll be happy to start a new line of ancestors, just send in your Japp genealogy information.



More branches of Japp families can be added to this site. Simply email in your Japp genealogy information starting with the oldest known Japp ancestor and their dates of birth, death, marriage, and location. I have seen Japp families listed on the internet in the USA, Britian, Germany, Canada, Scotland, and Australia.

Descendants of John Freiderick Japp

Generation No. 4

HELENE JAPP [HERMAN LESLIE JAPP, GEORGE HERMAN JAPP, JOHN FREIDERICK JAPP] .

Child of HELENE JAPP is:

  • LISA JAPP.

    GEORGIA JAPP [HERMAN LESLIE JAPP, GEORGE HERMAN JAPP, JOHN FREIDERICK JAPP] .

    Children of GEORGIA JAPP are:

    1. SHANE JAPP.
    2. PAUL JAPP.

    CAROLYN JAPP [HERMAN LESLIE JAPP, GEORGE HERMAN JAPP, JOHN FREIDERICK JAPP] .

    Child of CAROLYN JAPP is:

  • DANA JAPP.

    BARBARA JAPP [HERMAN LESLIE JAPP, GEORGE HERMAN JAPP, JOHN FREIDERICK JAPP] .

    Child of BARBARA JAPP is:

  • STACY JAPP.

    GEORGIA EVELYN JAPP [CLARENCE KENNETH JAPP, GEORGE HERMAN JAPP, JOHN FREIDERICK JAPP]

    Children of GEORGIA EVELYN JAPP are:

    1. MARLA KAY JAPP.
    2. JANNA SUE JAPP.
    3. DOTTIE BEA JAPP.

    RUSSELL GENE JAPP [RUSSELL GEORGE JAPP, GEORGE HERMAN JAPP, JOHN FREIDERICK JAPP] married MARY ALICE GILLEN, 1964 in San Francisco, daughter of GEORGE GILLEN and GRACE MCLIN.

    Child of RUSSELL JAPP and MARY GILLEN is:

  • CARY GENE JAPP m.Jeannie Davis, four children.
    Pictures of the next five Japp family members are in the Photo Album

    RICHARD LEROY JAPP [FRITZ WILLIAM JAPP, WILLIAM LANSA JAPP, JOHN FREIDERICK JAPP] was born August 28, 1932, died May 2nd 2014. He married Mayone Russell 1953.

    Children of RICHARD LEROY JAPP and MAYONE RUSSELL are:

    1. RICHARD SCOTT JAPP, b. 27-Dec-1955, died June 19 2016.
    2. LONNY LEROY JAPP, m1.Amy Cohrs 1980,divorced, m2. Joan Petersen 1989, died May 1996.
    3. REID ALAN JAPP m.Vicki Meeves on 16-Nov-1985.
    4. MATTHEW FORREST JAPP.
    5. PAMULA MAYONE JAPP m. Sean Ehrp 1992, two children.

    DARLENE DORRIS JAPP [FRITZ WILLIAM JAPP, WILLIAM LANSA JAPP, JOHN FREIDERICK JAPP] married William Richard Harper Jr 1953. He was born Dec. 4, 1933 and died March 15, 2009.

    Children of DARLENE DORRIS JAPP and WILLIAM RICHARD HARPER Jr are:

    1. TERI MICHELE HARPER, 1974 married Doug Wolfe.
    2. STEVEN WILLIAM HARPER, married Laurie Homes.
    3. BRUCE RICHARD HARPER, born June 11, 1957, died June 18, 2009. On Sept. 20, 1986 married Janice Klingeman, one child. Find-A-Grave obit
    4. ROBERT DEAN HARPER, 1986 married Amy Beth Cohrs
    5. MERLE LEE HARPER.

    MERLE FREDRICK JAPP [FRITZ WILLIAM JAPP, WILLIAM LANSA JAPP, JOHN FREIDERICK JAPP] married Rita Ann Andrepont (1935-2021), divorced 1982, married Debbye Mosley in 1983.

    Children of MERLE FREDRICK JAPP and RITA ANN ANDREPONT are:

    1. MICHAEL ANDRE JAPP, 2000 married Cherie Rivera, two children.*
    2. MARGARET MICHELLE JAPP, 1988 married Wayne Richard Sharp, two children, divorced 1994, married James Todd Ivey 1994, three children.*

    Child of MERLE FREDRICK JAPP and DEBBYE MOSLEY is:

  • AMANDA MICHELLE JAPP.

    JOANN CLARE JAPP [FRITZ WILLIAM JAPP, WILLIAM LANSA JAPP, JOHN FREIDERICK JAPP] was born July 26, 1939, died May 29, 2015. She married John E. Lorenzen 1958.

    Children of JOANN CLARE JAPP and John E. LORENZEN are:

    1. JACQUELINE JOANN LORENZEN, 1984 married Patrick Scalon, three children.
    2. RENEE HELEN LORENZEN, 1983 married Jeffrey Young, three children.
    3. RICHARD JOHN LORENZEN, 1986 married Danae Svoboda, two children.
    4. RANDALL DEAN LORENZEN, 1991 married Melissa Ann Revers, four children.

    WILLIAM LELAND JAPP [FRITZ WILLIAM JAPP, WILLIAM LANSA JAPP, JOHN FREIDERICK JAPP] married Mary Kruse 1970.

    Children of WILLIAM LELAND JAPP and MARY KRUSE are:

    1. HEATHER MARIE JAPP, married James Blackstone, one child.
    2. WILLIAM LELAND JAPP Jr., married Tammi ? 2002.
    3. JASON CHARLES JAPP, on 1999 married Amy Beth Kuhl.

    LEONARD MELVIN JAPP [LEONARD WILLIAM JAPP, JOHN FREIDERICK JAPP{2}, JOHN FREIDERICK JAPP{1}] was born on September 18, 1946 in Sidney, Nebraska, and died Nov. 28, 2019. He married Karen Marie Kincade 1968 in Sterling Colorado. They have two daughters:

    1. Melissa Japp Fenster, two children.
    2. Mindy Japp Kelley, married Shannon Kelly, two children.
    This section added October 2013.

    ROGER WILLIAM JAPP [LEONARD WILLIAM JAPP, JOHN FREIDERICK JAPP{2}, JOHN FREIDERICK JAPP{1}] was born on July 15th, 1950, in Sterling Colorado and died 6 Feb 2019. He married Gayle Lorraine Campbell 1969, two children:

    1. Roger Japp II
    2. Jeff Japp, two children.

      RICHARD LYNN JAPP [LEONARD WILLIAM JAPP, JOHN FREIDERICK JAPP{2}, JOHN FREIDERICK JAPP{1}] was born on July 5th, 1954, in Sterling Colorado and died in 1990. He married Nona Jean Salmon 1973, one child:

    3. 1. John Japp, Married Erin Arnold, one child. The previous three sections were added in October 2013.

      MILDRED MAE JAPP [WALTER HENRY JAPP, WILLIAM LANSA JAPP, JOHN FREIDERICK JAPP] was born May 18, 1923. She married Donald Max Krampe on February 14, 1948. He was born Sept 18, 1924.

      Children of MILDRED MAE JAPP and DONALD MAX KRAMPE are:

      1. STEPHEN EDWARD KRAMPE, married l976 to Carolyn Louise Dwire, one child.
      2. KAREN SUE KRAMPE, married 1985 to Bruce Edward Madinger, two children.
      3. RICHARD ALAN KRAMPE, married 1990 to Bonnie Lea Ritter, two children.
      4. JANE ANN KRAMPE, married 1980 to Christopher Michael Flogstad, died 26-Feb-l998, one child.

      LYLE WILLIAM JAPP [WALTER HENRY JAPP, WILLIAM LANSA JAPP, JOHN FREIDERICK JAPP] was born October 29, 1925 and died 23 Mar 2015. He married Phyllis Marie Kalisch 1955. She was born January 8, 1937 and died 2 Dec 2013.

      Children of LYLE WILLIAM JAPP and PHYLLIS MARIE KALISCH are:

      1. DEBRA KAY JAPP.
      2. JOHN MICHAEL JAPP married Janet ?.

      WALTER HANS JAPP, Jr [WALTER HENRY JAPP, WILLIAM LANSA JAPP, JOHN FREIDERICK JAPP] was born, born May 24, 1931 and died 19 Dec 2020. He married JoAnn Marie Jacob 1953..

      Children of WALTER HANS JAPP, Jr and JOANN MARIE JACOB are:

      1. DAVID WALTER JAPP married 1976 to Cheryl Ann Warner.
      2. THEODORE (Ted) LEE JAPP, married Lori Lyn Blomendahl 1992.
      3. JANICE MARIE JAPP, married 1994 to Edward Maximillian Mantler.
      4. DIANE BETH JAPP, married Richard Fox, divorced, married Chuck Trofholz.

      MARY LOU JAPP [WALTER HENRY JAPP, WILLIAM LANSA JAPP, JOHN FREIDERICK JAPP] was born Aug.18,1933 and died 10 Aug 2008. She married Donald Andersen b. Dec.25,1931; d. Jan.11,1980. Their wedding was August 26, 1951.

      Children of MARY LOU JAPP and DONALD ANDERSEN are:

      1. SALLY JO ANDERSEN, married Jay Edward Johnson 1971.
      2. JAMES D. ANDERSEN, married Laurie A. Miller 1978, Divorced 1980, married Joyce Heflin Stinson 1983, divorced 1996, married Denise Pavelka Reed Sturm 1998, divorced 2001.
      3. ROBERT CHRIS ANDERSEN, married Judy Luck 1986, Divorced 1991, married Kathleen Leibert Galvin 1998.
      4. DONALD JAY ANDERSEN, b. 3/3/66, d. 4/3/93.
      5. MARK ALAN ANDERSEN, married Tracy S. Trask 1997.
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      This page (gen4.htm) last updated: 14 October 2025. This site created: 2-MAR-2001.
      Footnotes on Generation No.1 page.