The series comes from the 'Current Population Survey (Household Survey)'
The source code is: LNU03074597
Source: US. Bureau of Labor Statistics
Release: Employment Situation
US. Bureau of Labor Statistics, Unemployed: With a Disability, 16 years and over [LNU03074597], retrieved from FRED, Federal Reserve Bank of St. Louis https://research.stlouisfed.org/fred2/series/LNU03074597/, July 30, 2015.