I found a newspaper article stating that Patrick Stromblad was admitted to citizenship Monday July 13, 1896.
Owyhee Avalanche newspaper
Silver City, Owhyee County, Idaho
I know you had the year but I didn't know if you had the date.
In the 06-04-1897 issue of the same newspaper on page 5, Pat Stromblad is employed as an engineer at the Trade Dollar Mill. He is resigning his position and starting for British Columbia. But then in the December 7, 1897 issue it has him listed as a newly installed officer of the Silver City Lodge No. 25 Knights of Phythias - Pat Stromblad, O.G.
On November 9, 1899 he is on the decorating committee for the Knights of Phythias Ball commemorating the 4th anniversary of the Silver City Lodge No. 25 K. of P. at the Masonic Hall.
I don't have any other information. I am not a relative.