Linda, You will find Charles J. Adami in the 1900 census listed with his parents, Henry and Elizabeth Adami.He was born in July 1878 in Montana.
There is quite a lot on the Adami family in the Helena Montana newspapers that are accessible on Ancestry.com [Historical Newspapers]. Requires subscription.
This is from the Independent Record [Helena, Montana] issue of 13 August 1955:
"The ashes of Charles J. Adami, Helena native, will be entombed at 3 o'clock Tuesday afternoon at Forestvale cemetery.Bishop Henry H. Daniels, will officiate."
A listing of the Forestvale Cemetery can be found at this site:
An article on the death of his mother, Elizabeth Adami, describes Charles J. Adami as a mining engineer of Denver, Colorado and former general manager of the St. Joseph Lead Company in Missouri. [Helena Independent issue of 12 February 1941].