He might be the one in Salisbury, Chariton County, Missouri in 1870 and 1880.

1870 Peter 50 is born in Ireland, Johanna 40 in Ireland, Mary 16 in New Jersey, Michael 13 and Susan 10 in Illinois, Peter 5 and Richard 3 in Missouri.

In 1880 he's 12 born in Missouri, parents Peter 58 and Jephanie 46 Pickett, Susan 19, Peater 15, and Katy 8.

In 1900 Chariton County Richard born August 1867, married nine years to  Lura born  November 1862, Hollis L. August 1891, Maurie A September 1892, and Winnie N. December 1899 - all born Missouri.