Joseph and Catherine Walker of Hereford had five children who left numerous descendants in Baltimore County, Md., York County, Pa., Hamilton and Butler Counties, Ohio, Indiana and elsewhere. Numerous allied families include Boswell, Cameron, Curtis, Foster, Gorsuch, Hammitt, LeSourd, Perdue, Wilson and Young. Of special interest are the numerous paper mills and grist mills operated by these families. Noted authors, Shakesperian actors, western pioneers, Civil War soldiers and Nobel laureates are among these families.