Am not related but these are listed in Dunklin Co Mo in 1870
Benton Rosenbam Union, Dunklin, MO 121857 MissouriWhiteMale James Rosenbam Union, Dunklin, MO 141855 TennesseeWhiteMale Margaret Rosenbam Union, Dunklin, MO 171852 TennesseeWhiteFemale Marget Rosenbam Union, Dunklin, MO 471822 KentuckyWhiteFemale Polly Rosenbam Union, Dunklin, MO 221847 TennesseeWhiteFemale
Marget Rosenbam Age 47 Birthplace:Kentucky Home in 1870:Union, Dunklin, Missouri White Female Post Office:West Prairie Page:768 Image:700 Year:1870
The census page hand written is 16 if you do not have access to the image itself just let me by email andI will transcribe it for you Will see if i can find your Joseph and wife in 1870 These above are the only Rosenbaums (using soundex that are listed in MO so they might have already moved to Ark by 1870.
Dont know enough about this family to tell you if this might be your Johns wife and John is deceased by 1870 who you think are the parents of Joseph who married Lurany
I am a Mitchum Researcher and just happen to see your message and thought I might help and am a genealogy friend to Willis Finley who is related to the Independance Co Ark Meachams (this name is spelled so many ways it will drive ya crazy) LOL