In the book titled : "History of Whitley County 1882" Index is listed the following information.Actual copies of the pages listed by each persons name can perhaps clarify your information further.
Sickafoose, Samuel H(B. 1836 M. Catherine A. Holm)-pg 133,303,304, 388
Sickafoose, Catherine A. (Holm b. 1837-pg 304
1850 Whitley County Federal Census does not mention Samuel H nor any Holm.However 1860 does have the following:
pg 195 #1614/1619 Washington Twsp, Whitley Co/Ina- Holm, Michael-52MW-farmer-4000-1250-Maryland Mary J-49-FWPA 1860 Whitley County Federal Census has on pg 191 #1579/1585 a- Sickafoose, Samuel H-24-MW-farmer-0-50-Ohio Catherine-22-FW-Ohio Mary M.-10-FW-Indiana Hope this helps you.