In the 1910 US Census for Mesquite Township, Clark, Nevada, the family of Zera Eugene Barnum is enumerated as follows:
Dwelling #105; Family #105
Barnum, Eugene; Head; M; W; 20; 1st marriage; Married within the year; b. Nevada; Father b. Utah; Mother b. Utah; Speaks English; Farmer; Own Farm; Works for own account; Can read and write; Rents farm home; Farm Schedule 66
Barnum, Harriet; Wife; F; W; 18; 1st marriage; Married within the year; Mother of no children; b. Utah; Father b. Utah; Mother b. Utah; Speaks English; No occupation; Can read and write
In the 1930 US Census for Logan Township #7, Clark, Nevada the family of Zera Eugene Barnum was enumerated as follows:
Dwelling #29; Family #31
Barnum, Eugene; Head; Rents farm home; F [sic]; W; 40; Married; 20 when 1st married; Can read and write; b. Nevada; Father b. Utah; Mother b. Utah; Speaks English; Farmer; Farm; Works for own account; At work previous workday; Farm Schedule 22
Barnum, Harriet; Wife; F; W; 38; Married; 18 when 1st married; Can read and write; b. Utah; Father b. Utah; Mother b. Utah; Speaks English; No trade or profession
Barnum, La Rue; Son; M; W; 16; Single; Attends school; Can read and write; b. Nevada; Father b. Nevada; Mother b. Utah; Speaks English; No trade or profession
Barnum, Helen; Daughter; F; W; 13; Single; Attends school; Can read and write; b. Nevada; Father b. Nevada; Mother b. Utah; Speaks English; No trade or profession
Barnum, Verle E.; Son; M; W; 10; Single; Attends school; Can read and write; b. Utah; Father b. Nevada; Mother b. Utah; Speaks English; No trade or profession
Barnum, Leroy J.; Son; M; W; 4/12; Single; b. Nevada; Father b. Nevada; Mother b. Utah; No trade or profession