Hello, Don't know if anyone of you are still checking this, but I have a Hillman/Ferrell connection, thur Bertha Steinforth Hillman's husbands side and while reading this I thought I would do alittle research.
There are a Burial Permits on the Kenton co. KY public library website , which one includes the following: Permit # 3298 - for Linden Grove Cem. Covington, Kenton co. KY
Mary Steinforth - age 17 mos, - d. 22/Jun/1881 or 1887 (hard to tell)
Parents: Henry and Mary Steinforth
Whose Lot: Johann Mohlman
Permit Obtained by: Henry Steinforth
Hope this helps and one of you gets this.