NIEHAUS, Margaret (nee Buscher)  Margaret Buscher Niehaus, 95, wife of the late Harry  F. Niehaus, died at Mapleknoll Village retirement home  in Cincinnati, on May 1, 1995.  Margaret and Harry   Niehaus resided in Price Hill for 36 years as members   of Saint Lawrence and then Saint Teresa Catholic Church  parishes, where they raised their children.  During her active life, Margaret Niehaus had participated  in Catholic Church parish organizations, parent-teacher  associations, and a number of charitable groups.  Her   eldest son, Richard is deceased.  She leaves three daughters,  Marilyn, Elaine (Mrs. Raymond Lutter) of Cincinnati,  Marjorie, of Alexandria, Virginia, one son, Harry F. Niehaus,  of Cincinnati, eight grandchildren, and twenty great-  grandchildren.    No visitation.  Relatives and friends are invited to attend  Mass of Christian Burial, Thursday, 10:30 A.M. St. Teresa  of Avila Church.  B.J. Meyer Sons Overlook Funeral Home  handling arrangements.