NOTE: All of the following materials are at the Clackamas County Historical Society. Most major censuses are available at least on microfilm at other area libraries and the Oregon State Archives, Salem.
Among the many records consulted by the Oregon State Archives Search Engine are some 14,848 entries in Provisional and territorial government censuses, 1845-1859.
1850 Oregon Territory Census to see the alphabetized list of names (with residence by county). Oregon Territory 1850 Census is on-line thanks to the hard work of Roxann Gess-Smith, Vivian Comenzind, and Debbie Simpson.
A complete typescript of the census is in a loose-leaf binder at the Clackamas County Historical Society. It is also on microfilm at the Lake Oswego Library, Oregon Historical Society, etc. The complete transcript is alphabetized by surname; lists occupation, age, and place of birth (by state); divided by counties in Oregon Territory. Transcribed by Elsie Youngberg, 1970.
1850 Census of Oregon Territory: abstracted by Ruby Lacy in 1984; divided into counties; only adult males were listed by name; total number in household, number of adult women, number of children--age and gender specified.
1850 Polling Sheet Oregon City: names voters (white males over 21).
Territorial Road Petition, Willamette Valley, Westside, ca1851-2: names voters who signed (white males over 21).
List of Trail Deaths in 1852; Available at the Clackamas County Historical Society in the "Oregon Miscellaneous Records" folder.
1856 Census Roll of Clackamas County Oregon: Alphabetized. Names head of household only; enumerates (in each household) male legal voters, male adult non-voters, males 10-21, males under 10, females over 18, females 10-18, and females under 10.
1857 Census Roll of Clackamas County Oregon: Alphabetized. Names head of household only; enumerates (in each household) male legal voters, male adult non-voters, males 10-21, males under 10, females over 18, females 10-18, and females under 10.
US Census, Clackamas County on line at USGenWeb was abstracted by Julie
Sims from public records, and was edited and
formatted by Maggie Stewart. Description of the original Clackamas County 1860 US Census: surname and first, gender, age, birthplace of each person in household (by state), occupation of head of household, value of real and personal property. As of 1860, Clackamas included 2,220 sq. mi., 13 precincts, 3,471 people--1,987 male, 1,484 female, and 805 children in school.
Clackamas County Coroner's Reports, 1860-1883
Clackamas County Delayed Births, 1869-1896
United States Census of Clackamas County, Oregon 1870: by precinct, everyone in household named with gender, age, place of birth (by state), and occupation. From this year forward Oregon's census follows the pattern of the rest of the United States, i.e., every ten years with the same categories as the rest of the country.
Search the 1880 US Census and others; a free on-line service (among others) of the Family Search organization and web page.
Oregon 1890 Territorial Census and Index
1910 Oregon Census Enumeration District Descriptions: lists 49 precincts; gives total population of each and number of families in each; covers entire state; by the Genealogical Forum of Oregon, 1996.