Here is some information on James

ID: I11491
Name: James McWha
Sex: M
Birth: 1819 in Bangor, County Down, Ireland
Death: BET 15 DEC 1862 AND 16 JUL 1866 in Civil War
Event: Census 1850 17 AUG 1860 Household #491, Redland PO, Antoine, Pike County, Arkansas - Series: M653 Roll: 47 Page: 507
Note:
Name: James Mcwha
Residence: Pike, Arkansas
Minor civil division: Antoin Township
Age: 41 years
Estimated birth year: 1819
Birthplace: Bangor Ireland
Gender: Male
Page: 75
Family number: 491
Film number: 803047
Digital GS number: 4211306
Image number: 00516
NARA publication number: M653
Collection: United States Census, 1860

http://wc.rootsweb.ancestry.com/cgi-bin/igm.cgi?op=GET&db=jkeene2000&id=I11491

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See also:

http://www.pcahs.org/gems/GEMSV9N1.pdf