Looking for help with: Christian Brokopp, wife Dorothy Maritz

I know there are Brokopps in Oldenberg, can you help with my search? thanks, Arlen Brokopp Lancaster, Wisconsin USA

I am looking for info on : spelled, Brokopp, Brockopp, Brokup etc.

Christian Brokopp, & Dorothy "Maritz" Brokopp [Arlen Brokopp's GGG Father & GGGMother.]

I found their names on Brokopp Family documents at Juneau Co. Courthouse in Mauston, Wi.

I have no other data on Christian or Dorothy Brokopp other than names.

Christian Brokopp and wife Dorothy were the parents of 3 children: I don't need anything on these 3 people.

1, John Brokopp b. 26 March 1844 in Nichikorvo [west Prussia] Lived near Columbus, Wi. Had a son named John also.in that area. Don't have Death date or place or cemetery

    Married, Julianna Pankonin b. 10 June 1849 in [Nichikrovo west Prussia]??? She Died in Waterloo, Wi.

2, Wilhelm "Wm" Brokopp "My GG Grand Dad" b. Feb. 28th 1846 in that same Nichikrovo place. d. 1 July 1929 Elroy, Wi. [ I have the cemetery and everything on him & his wife]

    Married, Christina [ Ernestina, Wellhelmina ] Keitzke b. 9 Oct. 1850 Preusen d.23 May 1923 Elroy, Wi. I have the rest of her data.

    Christina's Father: William Keitzke, b. abt. 1814 Prussia. 1880 Residence,Fountian Prairie,near Columbus, Wi.
    Christina's Mother: Emelia Baum b. abt. 1823 Prussia i don't know anything about Emelia Baum

3, Augusta Brokopp b.11 April 1859 Nichikrovo, d. 14 April 1951 in Michagian. Married, Gustav m. Finger 18 June 1881