1850 color is "M". (Daughters Maria & Melissa are marked as twins, age 1, M.)
1860 color is not entered, therefore assumed white (as the census taker imagined).
1870 color is "B", all others in his household "M".
Sources
Family Search.com for marriage date. 1850 Indiana state census for Legrange county lists Lucius 26, his wife Lucinda 24, and their 4 children.
"United States Census, 1850," database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:MHJG-B2Z : 19 December 2020), Lucius Phillips, Lima Township, LaGrange, Indiana, United States; citing family , NARA microfilm publication (Washington, D.C.: National Archives and Records Administration, n.d.).
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