The Castle still stands, as if a guardpost, overlooking the entrance to Austin and the surrounding Reese River Valley, and the memory of Gridley, with his "Sanitary Fund" sack of flour lives on. Gridley raised some $275,000 for the benefit of those wounded and suffering the effects of the Civil War. The Sanitary Fund was a predecessor of the American Red Cross. Gridley's Store is still in existence on the East end of Austin and is listed in the National Register of Historic Places.  A monument has been erected by the Grand Army of the Republic in the Rural Stockton Cemetary, where Gridley was buried, to honor him and his contribution to the war veterans.