I would suggest, you write to Ralls MO for her death record, most generally have the parents names on them, or try to contact someone in the genealogy division of the local library, or go online for Ralls co, Mo..someone maybe can do a look up obit.
Her husband Henry Coleman Shulse died,Feb 7, 1916 in St. Louis, MO..he is buried at (looks like) Ariel, MO..his death record was found online at Missouri State Archives. He was born 2 Oct 1830, nicholas Co, Kentucky son of Henry Shulse, and wife unknown. The complete death record is online. However Amanda was not listed.
They had a son, Orlando Shulse that died 4 Aug 1910, Ralls, Mo, he was born in Indiana, 9 May 1956, he is buried in the same cemetery.His death record is also online. Sorry I can't be of any further help, just some guidelines.