His middle name was probably Bennett like his uncle.

His birtdate may be Aug 1, 1846 or Aug 1850, but the various census records seems to prove the Oct 1848 date.
The 1850 census of Athens Co, Ohio, taken in Sept. had him as 1 yr old.
The 1860 census of Howell Co, Mo has him as 12 yrs old. (taken in July)
The 1880 census of Oregon Co, Mo, taken in June had him as 31 yrs. old.

For picture, go to:
http://mjgen.com/other/judd.html

1880 Oregon Co, Mo:
Obadiah Judd, fmr - 31 Oh Co Co
Malinda, wife - 30 Mo Tn Tn
Albert, son - 11 Mo Oh Tn
Samuel, son - 3 Mo Oh Tn
Lizzie, dau - 1 Mo Oh Tn

1900 Oregon Co, MO - Highland twp, hs#43
JUDD, Obe B. (head/widowed) Aug 1850 - 49 Oh Oh Oh
. . . . Pleas V. (son) Jan 1887 - 13 Mo Oh Mo
. . . . Rufus F. (son) Sept 1889 - 11 Mo Oh Mo

1910 MO census - Oregon Co, Highland twp, p 72 (April):
Judd, Obi (head) - 61, m 2nd 9 yrs, b MO, par b OH
. . . . Rutha A. (wife) - 49, m 2nd 9 yrs, 5 ch/5 liv, b MO, par b IL/MO
Trantham, Viola (step-daug) - 15, b MO
Judd, Alva (son) - 8, b MO
. . . . Ella (daug) - 5, b MO

Missouri Death Certificate
Obe Judd
born Feb 12, 1848, Ohio
died Oct 26, 1911, Highland twp, Oregon co, Mo, 62 yrs 8 mo 13 day
buried: Jolliff Cem Oct 27
father: Mark Judd
mother: unk
informant: Albert Judd, Thomasville, Mo

Find A Grave Memorial# 19749412
http://www.findagrave.com/cgi-bin/fg.cgi?page=gr&GRid=19749412

• Married: ABT 1868 in prob Oregon Co, Mo.

1. Albert Lonzo JUDD b: FEB 1869 in Missouri
2. Samuel J. Tilden JUDD b: 12 NOV 1877 in Oregon Co, MO
3. Lizzie JUDD b: ABT 1879
4. Paulina "Pliny" JUDD b: 7 MAR 1882 in Missouri
5. Please V. JUDD b: JAN 1887 in Oregon Co, MO
6. Rufus F. JUDD b: SEP 1889 in Oregon Co, MO

• Married: 29 NOV 1900 in Oregon Co, MO

1. Alva JUDD b: 12 NOV 1901 in Oregon Co, MO
2. Ella JUDD b: 31 MAR 1905 in Oregon Co, MO