I would supect that the Wesley McBee you are looking for is John Wesley McBeebornFebruary 9, 1831.He and many others in the family Left Ray Co., Missouri in 1852 bound for Oregon.There was many deaths in the family along the way, and judging by James Wesley McBees age, he could have been married before leaving Missouri, and she died before October 1855 when he was married in Oregon.
Below is the information for the parents of James Wesley McBee, and his parents.
William McBee, son of Thomas McBee and Rachel Riley born 18 November 1801 in Frederick Co., Md; died11 April 1862. Buried Benton Co., Oregon, at Wagner's Butte.Married, 12 June 1828 in Stark County, Ohio to Elizabeth Milligan, born 8 March 1803 (1813) at either Pennsylvania or Ohio. Note- 1860 census shows Elizabeth Milligan age 53, born Pennsylvania, 1870 census shows age 59 born in Ohio; died 27 January 1898 (93) Benton Co. Oregon (Note: Wagner Butte headstone - Elizabeth 29 January 1898-(85 years.) (probable sister to Susannah Milligan, born 1815 in Ohio, Married to Thomas L. McBee
Note: William McBee arrived in Oregon 30 October 1852 - Land Claim No. 4259. He was a farmer in Ohio County, Oregon, settled claim 19 March 1854. William McBee took a claim South of Corvallis near the Willamette River in Benton County Oregon, where a number of his descendants live. Children born to William and Elizabeth McBee: 1/6/1/3/1. Rachel McBee, born 24 Sept 1824died 1830 1/6/1/3/2. John Wesley McBeebornFebruary 9, 1831 1/6/1/3/3. Thomas McBee 1/6/1/3/4. George McBee, born 11 May 1835, 1/6/1/3/5. Elizabeth McBee 1/6/1/3/6. William Henry McBee, born 1 October 1839 1/6/1/3/7. Joseph McBee, born 19 September 1842 1/6/1/3/8. David Eutene McBee, born 1843-45 1/6/1/3/9. James P. (Doc) McBee, born 12 September 1846 1/6/1/3/10. Nancy J McBee, born 23 March 1849
John Wesley McBee, born February 9, 1831 in Stark County, Ohio, died 23 January 1888 in Springfield, Oregon. Married 31 October 1855 in Marion County, Oregon (1) Almira Elizabeth Mathena, born in Indiana and died in 1868 (2) Josephine Grubbs, born May 9, 1847 in Niles, Michigan; died 21 September 1893: Parents of Josephine Grubbs: John Grubbs, born 7 January 1801, Pittsburg, Penn and Susan Austen, born Mar 10, 1814 in Castle Gate, England. McBee Island and McBee Slough, West bank of Williamette River South of Corvallis, named for John Wesley McBee, pioneer settler. Children of John Wesley McBee andAlmira Elizabeth Mathena: 1/6/1/3/2/1. S.E. McBee. born December 13, 1856 1/6/1/3/2/2. W.A. McBee Children of John Wesley McBee and Josephine Grubbs: 1/6/1/3/2/3. Martha McBee married Grubbs 1/6/1/3/2/4. IdaMcBee married Collins 1/6/1/3/2/5. Jesse McBee 1/6/1/3/2/6. Henry Burton McBee 1/6/1/3/2/7. Elmer McBee 1/6/1/3/2/8. John McBee 1/6/1/3/2/9. Lillie McBee