Birth records for the Duck Creek Monthly Meeting give Calvin's birth as the 12th 12th month, 1832, son of Bailey and Jane. I presume, since these are Quaker records, this means his birthday was Feb 12. Other genealogist have recorded December 12 which is likely an error.
Note
There is a Levi Pearson in the 1860 census at Bad Ax, Hillsboro, WI who seems to fit. He is listed with a wife Mary and daughter Abba, 6 mo.
Father
Bailey PEARSON, b. 24 Apr 1807, NC d. Dec 1872 (Age 65 years)
Mother
Jane RATLIFF, b. 28 Dec 1808 d. 1846 (Age 37 years)