General Sources

1. 1880 Census
   

   1880 Census - Polk County, Iowa - July 20, 1880
   |s|d# |f# |name              |r|s|Ag|rel |m|occu      |s|r|w|birth   |Father      |mother     |twp
   |0|278|282|Warden, Isaac     |w|m|39|    |x|Farmer    | | | |Ohio    |Pennsylvania|Pensylvania|Madison
   | |   |   |Warden, Angeline  |w|f|34|Wife|x|Keep House| |x|x|Missouri|Michigan    |Michigan   |
   | |   |   |Warden, Sarah     |w|f|16|Dau | |At Home   | |x|x|Iowa    |Ohio        |Missouri   |
   | |   |   |Warden, Emma      |w|f|15|Dau | |At Home   | |x|x|Iowa    |Ohio        |Missouri   |
   | |   |   |Warden, Lydia M/  |w|f|12|Dau | |At Home   | | |x|Iowa    |Ohio        |Missouri   |
   | |   |   |Warden, John W.   |w|m|11|Son | |At Home   | | |x|Iowa    |Ohio        |Missouri   |
   | |   |   |Warden, Tarissa L.|w|f|8 |Dau | |At Home   |x| | |Iowa    |Ohio        |Missouri   |
   | |   |   |Warden, Mary      |w|f|6 |Dau | |At Home   | | | |Iowa    |Ohio        |Missouri   |
   | |   |   |Warden, Martha E. |w|f|5 |Dau | |At Home   | | | |Iowa    |Ohio        |Missouri   |
   | |   |   |Warden, Arthur E. |w|m|4 |Son | |At Home   | | | |Iowa    |Ohio        |Missouri   |
   | |   |   |Warden, Bertha J. |w|f|1 |Dau | |          | | | |Iowa    |Ohio        |Missouri   |