- Ancestry.com, 1910 United States Federal Census (Name: Provo, UT, USA: The Generations Network, Inc., 2006;).
Thirteenth Census of the United States, 1910. Washington, D.C.: National Archives and Records Administration, 1910.T624, 1,178 rolls. Sharon, Clinton, Iowa, ED , roll T624_398, part , page .
- Ancestry.com, 1920 United States Federal Census (Name: Provo, UT, USA: The Generations Network, Inc., 2005;).
Fourteenth Census of the United States, 1920. Washington, D.C.: National Archives and Records Administration, 1920.T625, 2,076 rolls. Monmouth, Jackson, Iowa, ED , roll , page , image 251.
- Ancestry.com, Iowa State Census Collection, 1836-1925 (Name: The Generations Network, Inc.; Location: Provo, UT, USA; Date: 2007;), Database online.
Record for Lena Eye.
- Ancestry.com, 1910 United States Federal Census (Name: Provo, UT, USA: The Generations Network, Inc., 2006;).
Thirteenth Census of the United States, 1910. Washington, D.C.: National Archives and Records Administration, 1910.T624, 1,178 rolls. Sharon, Clinton, Iowa, ED , roll T624_398, part , page .
- Ancestry.com, Iowa State Census Collection, 1836-1925 (Name: The Generations Network, Inc.; Location: Provo, UT, USA; Date: 2007;), Database online.
Record for Lena Eye.
- Ancestry.com, 1910 United States Federal Census (Name: Provo, UT, USA: The Generations Network, Inc., 2006;).
Thirteenth Census of the United States, 1910. Washington, D.C.: National Archives and Records Administration, 1910.T624, 1,178 rolls. Sharon, Clinton, Iowa, ED , roll T624_398, part , page .
- Ancestry.com, 1920 United States Federal Census (Name: Provo, UT, USA: The Generations Network, Inc., 2005;).
Fourteenth Census of the United States, 1920. Washington, D.C.: National Archives and Records Administration, 1920.T625, 2,076 rolls. Monmouth, Jackson, Iowa, ED , roll , page , image 251.
- Ancestry.com, Iowa State Census Collection, 1836-1925 (Name: The Generations Network, Inc.; Location: Provo, UT, USA; Date: 2007;), Database online.
Record for Lena Eye.