There are numerous EICHER's in Fayette County descended from Daniel EICHER. Daniel's son, Joseph EICHER(1784-1876), from whom I descend married Rosan KERN and had a large family amongst whom were 2 sons John K.EICHER(1824-1911)who married Martha Jane Cunningham and had a large family:Harriet, Frances,Albert,Margaret,Edward,William,Alice,
Charles,Florece and Mary Belle. The other son was Abraham K.EICHER(1838-1920)md. Jane Huston. Children:Alice, Chauncey, George,Margaret, Harry,and Fred. Both John and Abraham EICHER moved to Somerset County and both died there. Abraham actuallylived in the Somerset area. I don't have any info to tie them to your Marian R. EICHER but you may want to check census to see if they could be connected via any of the above.