I have the marriage & Cemetery books for Harlan Co. Neb.
I don't see a Harvey or Almon Sheffield in either books.
But there are other Sheffield in the books if you want the names.
I'm also relatives to, the Cady family from Harlan Co. Neb.
I found your Rosetta Cady, her father was James Cady & mother Adelia
I found James in the 1860 census Jackson Co., Wis
James Cady--25--born in Vermont
Adelia Cady --20-Ohio
1870 census Jackson Co. Wis.
Cady James -32-farmer- Vt.
Lou A.-4- Wis
1880 census Jackson Co. Wis.
Cadey Monroe-44- Vt.-farmer-Vt. -Vt.
Adelia-wife-39-Pa. both parents born in Pa.
I hope this helps