About 8 years ago, you helped me with my husband's Schneiders.Now, maybe I can help you a little....assuming that you haven't already found the answers to your questions in the year and a half since you posted the query.
Lena Muff, born 6 Nov 1884, became Lena Imorde, and died 24 Aug 1915 in Cincinnati, Hamilton County, OH.She is buried in Old St. Joseph's Cemetery on Cincinnati's west side.I do not know the name of her husband.Although the death certificate says "married," the informants name is not Imorde.
I still do not know what happened to her sister, Mollie.I am assuming that she moved out of Ohio, or died before 1908 (that is when death certificates begin and what I have searched.)
They also had a brother, Henry Muff (Jr., I assume, but isn't that way on DC)He was born 3 Dec 1884 (obviously, one of these birthdates is incorrect....he was born only a month after Lena?!?)He died 20 Jan 1909 in Cincinnati and is buried at Vine Street Hill Cemetery.
Maybe Mollie is buried with one of them.However, I have moved about an hour further away from Cincinnati and do not get down to research much anymore.
If you would like a digital image of their death certificates, email me and I will send them.