Here is a list of the Springsteel's buried in the Niwot Cemetery:
Walter Springsteelb. Jan. 31, 1876d. Dec. 18, 1941 Cora O. Springsteelno dates Virey E. Springsteeld. April 8, 19023 yrs, 5 mos, 19 dys daughter of W & E. C. Springsteel C. H. Springsteelb. March 16 187418 yrs, 8mos* *hard to read the months on the headstone I. J. Springsteelno dates the footstone is the only thing that remains Martha E. Springsteelb. Nov. 21, 1846d. Aug. 28, 1915 Wife of J. H. Springsteel J. H. Springsteelb. Dec. 24, 1843d. Sept. 4, 1916
I have photos of the headstones if you would like copies.