"United States Census, 1880," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:M8Y6-RP6 : 9 September 2017), Julia Alworth in entry for Robert Alworth, 1880; citing enumeration district ED 148, sheet 492C, NARA microfilm publication T9 (Washington D.C.: National Archives and Records Administration, n.d), roll 0750; FHL microfilm 1,254,750.
"Nebraska Marriages, 1855-1995," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:Q2ZL-2B4S : 28 November 2018), Wm Preston and Julia Alworth, 27 Nov 1891; citing Marriage, Atkinson, Holt, Nebraska, United States, Nebraska State Historical Society, Lincoln; FHL microfilm 2,020,572.
"United States Census, 1900," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MQM6-2GM : accessed 21 September 2019), Julia Preston in household of Wm H Preston, Precinct 8-12 Fort Collins, Timnsth Fort Collins city Ward 1-4, Larimer, Colorado, United States; citing enumeration district (ED) 213, sheet 47B, family 964, NARA microfilm publication T623 (Washington, D.C.: National Archives and Records Administration, 1972.); FHL microfilm 1,240,126.
"United States Census, 1910," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MK4C-X8S : accessed 21 September 2019), Julia Preston in household of William H Preston, Fort Collins Ward 4, Larimer, Colorado, United States; citing enumeration district (ED) ED 226, sheet 19B, family 543, NARA microfilm publication T624 (Washington D.C.: National Archives and Records Administration, 1982), roll 121; FHL microfilm 1,374,134.
"United States Census, 1920," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MXLM-QMK : accessed 21 September 2019), Julia Preston in household of William Preston, Fort Collins Ward 3, Larimer, Colorado, United States; citing ED 153, sheet 8A, line 40, family 212, NARA microfilm publication T625 (Washington D.C.: National Archives and Records Administration, 1992), roll 166; FHL microfilm 1,820,166.
"California, County Marriages, 1850-1952," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:K82R-RRX : 10 December 2017), Julia Alworth in entry for Reginald A Goldwater and Wilma L Preston, 15 Jan 1926; citing San Joaquin, California, United States, county courthouses, California; FHL microfilm 1,841,870.
"United States Census, 1930," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:XC8L-KKL : accessed 21 September 2019), Julia A Preston in household of Albert E Godfrey, Pasadena, Los Angeles, California, United States; citing enumeration district (ED) ED 1254, sheet 11A, line 19, family 337, NARA microfilm publication T626 (Washington D.C.: National Archives and Records Administration, 2002), roll 169; FHL microfilm 2,339,904.
"California Death Index, 1940-1997," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:VGTH-YJ1 : 26 November 2014), Alworth in entry for Naomi June Ames, 06 Sep 1983; Department of Public Health Services, Sacramento.
"California Death Index, 1940-1997," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:VG5Q-NQV : 26 November 2014), Alworth in entry for Orpha M Waite, 24 Oct 1995; Department of Public Health Services, Sacramento.
Find A Grave, database and images (https://www.findagrave.com : accessed 13 June 2018), memorial page for Julia A Preston (20 Sep 1872–19 Jun 1962), Find A Grave Memorial no. 52629859, citing Grandview Cemetery, Fort Collins, Larimer County, Colorado, USA ; Maintained by Sherri Schloss (contributor 47146767) .