I researched this Zimmerman genealogy using data obtained from internet sites.  The only information I had to go on were names on the family pages of my grandmother's Bible.  These names included her parents and grandparents.  I cannot absolutely verify the accuracy of this line.  ~  Jean
Our Zimmerman Family from Germany to Oklahoma
The earliest data I have found on this Zimmerman line begins in Remels, Ostfriesland, Germany in the 1700s:.

I. Johann Rencken Zimmerman married Greetje Claessen in 1748.

     1. Rencken Janssen Zimmerman 1752-1829 married Ancke Janssen in 1776.

          i. Jan Rencken Zimmerman 1777-1812 married Margaretha Otten 1797

               (1. Anna Janssen Zimmerman married Frerich Hespen in 1829.
               (2. John Rencken Zimmerman 1807-1876 married (1) Zeke Eilers in1830, (2)Trientje (Hattie) Melchers in 1833. 
               Child of John Rencken Zimmerman 1807-1876 and (1) Zeke Eilers

                    (i. Baby Zimmerman 1830 died shortly after birth.

               Children of John Rencken Zimmerman 1807-1876 and (2) Trientje (Hattie) Melchers
                    (ii. Margaretha Janssen Zimmerman 1834-?
                    (iii. Vohlke Jansen Zimmerman 1836-1847
                    (iv. Melchert Albers Zimmerman 1842-1918
                    (v. Anke Janssen Zimmerman 1844 lived only one week
                    (vi. Eka Janssen Zimmerman 1845-1922
                    (vii. Vohlke Janssen Zimmerman 1849 lived only one week
                    (viii. Trientje Volina Zimmerman 1852-1926
                    (ix. John Jansen Zimmerman 1838-1919 married Margaretha Johanna Gembler in 1867.
                    (x. Trientje Katharina Janssen Zimmerman 1852-1926

In 1857 John Rencken Zimmerman 1807-1876 and his family immigrated to the United States and settled in Golden, Adams County, Illinois.  John Rencken Zimmerman died in 1876 in Golden, Illinois and was buried in South Prairie Cemetery.   
The American Zimmermans
German born John Jansen Zimmerman 1838-1919 immigrated to the United States with his family in 1857.  They settled in Illinois where he enlisted in the 119th Illinois Volunteer Infantry and served during the civil war.  In 1867 he married Margarethe Johanna Gembler and in 1884 they moved from Illinois to Belle Plaine, Kansas where he farmed for the rest of his life.  John Jansen Zimmerman died in 1919 and is buried in Prairie Lawn Cemetery, Wellington, Kansas.

The twelve children of John Jansen Zimmerman and Margaretha Johanna Gembler were the first generation from this line to be born in America.

I. Trientje Elizabeth Zimmerman 1867-1941
II. Jacob Andrew Zimmerman 1870-1949
III. William John Zimmerman 1871-1947
IV. Charles Fred Zimmerman 1874-1935
V. Katherine Fredricka Zimmerman 1875-1893
VI. Theodore Jansan Zimmerman 1878-1879
VII. Theodore Jansen Zimmerman 1880-1960
VIII. Martin Christian Zimmerman 1882-1956
IX. Lena A Zimmerman 1885-1971
X. Emma Wilhemina Zimmerman 1887-1967
XI. Ludwig Adelbert Zimmerman 1889-1968
XII. Herman Henry Zimmerman 1892-1989

William John Zimmerman 1871-1947 married (1) Mary Virginia Martin (2) ? (3) Della Mae Hines  (4) Minnie Maurice

Children of William John Zimmerman 1871-1947 and (1) Mary Virginia (Ginny) Martin 1872-1968 

     1. Margaret Belle (Belle) Zimmerman 1894-1960
     2. William Andrew (Andrew) Zimmerman 1895-1979
     3. Charles Bennett (Bennet) Zimmerman 1897-?
     4. Josephine May (Josie) Zimmerman 1899-1990
     5. Beulah Mabel Zimmerman 1901-1993 married in 1919 Benjamin Franklin Baker 1901-1974
     6. Carl Eldon Zimmerman
     7. Gladys Irene Zimmerman 1903 born and died
     8. Rose Marie Zimmerman 1904 born and died
     9. Riley David Zimmerman 1908-1960
     10. Dawson Alva Zimmerman 1910-1994
     11. Theodore Christopher (Tater)  Zimmerman 1912-?
    
Child of William John Zimmerman 1871-1947 and (3) Della Mae Hines
     12. Lester Dean Hines Zimmerman 1918-?

Mary Virginia Martin Zimmerman remarried Robert Caldwell.  She died in 1968 and was buried Mary Virginia Caldwell in Isabella Cemetery, Major County, Isabella, Oklahoma.  Her grave is in Zimmerman section of the cemetery and several of her eleven children are buried nearby.

The Children of Beulah Mabel Zimmerman 1901-1993 and Benjamin Baker are

          i. Everett Eugene Baker 1921-1944 killed in Germany WWII married in 1940 Edna Pearl Fuller
          ii. Arlynn Benton Baker 1923-     married in 1942 Ruby Elaine Schoonover
          iii. Loretta Mae Baker 1925-2001 married in 1948 Ivan Dale (Chief) Peckham 1923-      
          iiii. Benalea (Benny) Baker 1934-1987 married in 1955 Wayne Schwedland ?-2002

Beaulah Mabel Zimmerman Baker, her husband Benjamin, and their three deceased children are all buried in Memorial Park Cemetery, Garfield County, Enid, Oklahoma.
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