James Hutchison was born in Tennessee found in the 1870 Douglas county Census with wife Mary born about 1834 in Arkansas. Daughter Thelma aged 16 is listed as having been born in Missouri which would indicate a Missouri residence date as early as 1854.
Name: James Sheridan HUTCHISON
Birth: 10 JUL 1830 in Smith Co., TN
Death: 24 JUL 1903 in Denlow, Douglas Co., MO
1850 Census, Newton Co., Van Buren/Benton Twp. shows him living with his mother, Jane, and brother, William.
Death Notices Abstracted from the Douglas County Herald, 1887-1910: July30, 1903 Stony Point scratchings. "Another old citizen, Uncle Jimmie Hutchinson (mispelled) was buried at Denlow last week.
Denlow Cemetery, Row 26
Father: William George HUTCHISON b: JUL 1798 in TN
Mother: Sarah Jane JAMES b: 1 JUL 1793 in TN
Marriage: Mary Polly HUMPHREY b: 4 JUL 1835 in Lawrence Co., AR
James Sheridan HUTCHISON b: 1867 in Cold Springs, Douglas Co., MO
Thomas Hart Benton HUTCHISON b: 30 AUG 1854 in Newton Co., MO
Eliza Jane HUTCHISON b: 29 MAY 1856 in Newton Co., Buffalo Twp.
Mary HUTCHISON b: 1859 in Newton Co., MO
George Harrison HUTCHISON b: 10 FEB 1862 in Denlow, Douglas Co., MO
William Sherman HUTCHISON b: 1866 in Denlow, Douglas Co., MO
Samuel B. HUTCHISON b: 25 SEP 1869
Sidney Caroline HUTCHISON b: 10 MAY 1873
Martha A. HUTCHISON b: 1876
Given info above it appears that James Hutchison relocated himself and family from Newton County Mo to Douglas County between 1859 and 1862. I find no helpful listings for a James Hutchison / Hutchinson in the SOS files or NPS listing from Missouri. I find it striking that given his age and locations at the time with mandatory service required that he did not serve in some EMM unit somewhere.
I suspect he did but can't prove it yet.