To obtain an obit, you may need to contact a library or genealogy society of Sac County
1910 Census (Varios spellings/misspellings)
1910 United States Federal Census about Charles Wiskenbarn Name: Charles Wittenborn-[Charles Wishenborn]-[Wiskenbarn] -[Weisenborn] Age in 1910: 43 Birth Year: abt 1867 Birthplace: Germany Home in 1910: Sac, Sac, Iowa Race: White Gender: Male Immigration Year: 1895 Relation to Head of House: Self (Head) Marital Status: Married Spouse's Name: Eliza P Wiskenbarn Father's Birthplace: Germany Mother's Birthplace: Germany Household Members: Name Age Charles Wiskenbarn 43 - believe he was a farm laborer - per a family tree on Ancestry, born June 1866 and died April 1, 1948 - Parents: Christoff Wisenborn, Christina Wagoner Eliza P Wiskenbarn 43 - Maiden name on a family tree Groskwith born Sept 1866, died 1948 Fredwig Wiskenbarn 16 Charles H Wiskenbarn 13 - possibly married an Elizabeth M. Tyson 6/29/1909 Fritz W Wiskenbarn 11 Martha C M Wiskenbarn 8 Willie Wiskenbarn 7 Anna S Wiskenbarn 4 Henry W Wiskenbarn 1 [1 11/12]
The Family Tree on Ancestry lists these children:
Louis Conrad Wisenborn
Birth 17 Nov 1893 in Germany Death Mar 1973 in Lowell, Middlesex Co, MA
Charles Henry Wisenborn Birth 17 Nov 1896 in IA Death May 1973 in Sac City, Sac Co, IA
Frederic W Wisenborn Birth 1 Jun 1898 in IA Death 20 April 1960
Martha Dora M Wisenborn Birth 29 May 1901 in Crawford Co, IA
Unknown Boy Wisenborn 1902 – 1910
Birth 24 Dec 1903 in IA Death 4 Oct 1997 in Lakewood, Jefferson Co., CO Wife - Evelyn - born August 17, 1904 - died July 9, 1997 in Lakewood, Jefferson Co., CO - husband was still living at the time of her death
Anna S Wisenborn 1906 –
Henry W Wisenborn Birth 09 Jun 1908 in IA Death 29 Jun 1998 in Jefferson Co., CO
Alvina K Wisenborn 1912 –
Using the dates and locations of the deaths of some of the children, you might check Find A Grave and see if they are listed and possibly have an obituary included.
Hope this helps a little and that others can provide more information for you.