I found a little more info on Jane Wigley Risum of Dade County for anyone researching her family.
It appears that her name may have been Martha Jane or Jane Martha Wigley. She was the first wife of Otto Axel Risum. Otto went by the initials O.A. Risum. Martha Jane is buried in Section 1, Row 18 at the Green Valley (also called Bethel East) Cemetery in Green Valley Township, Shawano County, Wisconsin.
In nearby Section 1 Row 16, there is a group of Risum family members:
RISUM Martha J. no dates very old stone
(perhaps this is a marker for a baby named after Martha Jane)
RISUM Christine L. May 29, 1865 - June 27, 1896 wife of D A Risum (Christine was Otto Risum's second wife, maiden name Christina Louisa Krueger/Creger. Christina died in a yachting accident on Lake Shawano along with 5 other people. Stone should read wife of O.A. Risum.)
RISUM John Louis Dec 28, 1866 - Sept 11, 1922 (John Louis was the child of Martha Jane Wigley Risum and
Otto A. Risum)
RISUM Otto A. Mar 17, 1890 - Oct 9, 1890 Son of Q.A. and L. Risum (This is likely the son of O. A. Rism and second wife Chrisina Louisa Risum).
Hope this is helpful.