1st MARRIAGE - Margaret Jane Marsh
1860 MO CENSUS - P.F. Clark (31y, b Illinois, occupation farmer) enumerated with Margaret J. (29y, b Tennessee), Margaret E. (6y, b Missouri), and Henrietta (5y, b Missouri); also with family were Lucretia Pennington (16y, b Missouri) and Ephraim Pennington (14y, b Missouri) who were listed as "inmates"
1870 MO CENSUS - Peter F. Clark (40y, b Illinois, occupation farmer) enumerated with Margaret J. (39y, b Tennessee), Margaret E. (16y, b Missouri), Annetta C. (14y, b Missouri), John F. (9y, b Missouri) and Adda (4y, b Missouri)
1880 OR CENSUS - Peter F. Clark (51y, b Illinois, occupation farmer) enumerated with wife Margaret J. (49y, b Tennessee) and 2 children, John F. (19y, b Missouri) and Ada (14y, b Missouri)
1900 OR CENSUS - Peter P. Clark (b Jan 1829, Illinois, widowed) enumerated with daughter Addie (b Aug 1865, Missouri), grandson Vivian Cochran (b Feb 1880, Oregon), and 2 boarders, Mattie Boyd (b Aug 1832, Indiana, married 20y, mother of 5 children, all living) and Martin V. Mann (b Jan 1837, Indiana, widowed)
2nd MARRIAGE - Elvira Eliza McCord Poindexter
1910 OR CENSUS - P.F. Clark (81y, b Illinois, married 5y, second marriage) enumerated with wife Eliza (69y, b New York, married 5y, second marriage, mother of 10 children, 6 living at time of census), also with family was boarder Sydney F. Cochran (34y, b Oregon)
NOTE - 2nd wife Elvira or Eliza was the widow of James Newton Poindexter who died 20 March 1903 at Prineville, Crook Co, Oregon. She appears in the 1920 census of Eugene, Lane Co, Oregon, living with her son Frank Poindexter. She died 10 March 1923 in Crook Co, Oregon [OSBH DC 1923 Crook co #14] and was buried with her first husband in the Juniper Haven cemetery at Prineville