Name 

Description 

 

childCareYears 

Child care years, 1937 to 2100. 

 

disabPeriod 

Two periods of disability. 

 

milServDatesVec 

Military service dates. 

 

qc 

Quarters of coverage, 1937 to WorkerDataGeneral::maxyear. 

 

railRoadData 

Railroad quarters of coverage and earnings. 

 

ssn 

Social security number of wage earner.