UH_SPOUSE_A1 is a 2-digit numeric variable.
0 = No spouse present
Spouse's line number - 1983-1987
Unicon Corporation made the following notes about this variable:
Warning - a user reports that in 83-87, spouse number equals line number in many cases. Other variables used to match spouses in these years are fspidx, fwfidx, and fhsbix.
|1983 – 1987||-||-||X||-||-||-||-||-||-||-||-||-|