11925 Iowa census (Archer), 1925.
"6 Peterson, Christ Head M W 48 M A-O;B-F;C-500; F-can't say 8th Y Y 32yUS;23yIA naturalized
7 Peterson, Emma Wife F W 42 M 8th Y Y
8 Peterson, Geo S. Son M W 18 S 11th 9m Y Y
9 Peterson, Marie, E. Daughter F W 17 S 9th 9m Y Y
6 Denmark Peterson, Michael Denmark Peterson, Mata Denmark Denmark D-Y;G-none Lutheran
7 Iowa Pederson, S. G., Denmark Pederson, Ellen Denmark Denmark C-Y;G-none Danish Lutheran
8 Iowa Peterson Christ Denmark 48 Pederson, Emma Iowa 42 Iowa G-none None
9 Iowa Peterson Christ Denmark 48 Pederson, Emma Iowa 42 Iowa G-none None.".
http://iagenweb.org/obrien/1925/Arch006.htm.