1900 Federal census - McHenry Co, ND:
* Gustav Rosenau - age 38; b. Aug 1861
Germany; widower; imm. 1894; 6 years in US; naturalized PA; farmer; speaks
English; own farm free
Erna - age 5; b. Jan 1895 WI
1910 Federal census - McHenry Co, ND:
* Gustav Rosenau - age 49; 2nd m - 5
years; b. Germany; imm 1890; speaks English; owns farm free
Elenora - age 49; 2nd m. - 5 years; b. Poland; imm 1894; speaks German; cannot
read or write
Erna - age 15; b. WI; speaks Eng
______ - age 5; b. ND; speaks Eng
Biberdorf, Bernard - age 13; b. Russia; speaks Eng
Erick - age 11; b. Russia; speaks Eng
Herman - age 8; b. ND; speaks Eng
1920 Federal census - McHenry Co, ND:
* Gustav Rosenau - age 58
Elenor - age 58
Wanda B - age 14
Biberdorf, Reinhardt - age 23; step-son
Biberdorf, Erick - age 20; step-son
Biberdorf, Herman - age 18; step-son
1930 Federal census - Mouse River, McHenry, ND:
* Gustav Rosenau - age 68; b. Germany
Elinora - age 68; b. Russia
Wanda - age 24; b. ND
