Hi,

I believe I found him in 1910 and 1920.

1910 United States Federal Census

Name: Olan Robason
[Olan Roberson]
Age in 1910: 30
Estimated Birth Year: abt 1880
Birthplace: Texas
Relation to Head of House: Head
Father's Birth Place: Texas
Mother's Birth Place: Texas
Spouse's name: Maggie
Home in 1910: Justice Precinct 1, Titus, Texas
Marital Status: Married
Race: Mulatto
Gender: Male

Household Members: Name Age
Olan Robason 30
Maggie Robason 21
Anie Robason 10/12

In this census (1910) he is living next door to Mitchell Roberson>

Name: Mitchell Roberson
Age in 1910: 49
Estimated Birth Year: abt 1861
Birthplace: Alabama
Relation to Head of House: Head
Father's Birth Place: North Carolina
Mother's Birth Place: Alabama
Spouse's name: Emma
Home in 1910: Justice Precinct 1, Titus, Texas
Marital Status: Married
Race: Mulatto
Gender: Male

Household Members: Name Age
Mitchell Roberson 49
Emma Roberson 40
Della Roberson 21
Buelah Roberson 5
Simpson Roberson

1920>>

Name: Olan Robinson
Home in 1920: Mount Pleasant, Titus, Texas
Age: 37 years
Estimated Birth Year: abt 1883
Birthplace: Texas
Relation to Head of House: Head
Spouse's name: Maggie
Father's Birth Place: Texas
Mother's Birth Place: Texas
Marital Status: Married
Race: Black
Sex: Male

Household Members: Name Age
Olan Robinson 37
Maggie Robinson 35
Clarence Robinson 8

Hope this helps

Tony