1099-Misc Main Job?

I retired in 2017.  In 2018, I was awarded back pay by my employer due to a grievance filed by my union.  If it matters, the award was for a pay raise employees eventually got in 2018 to settle a 2017 contract, but I had already retired, so a check with no withholdings was mailed to me.   As such, I received a 1099-Misc.  The questions in Turbo Tax related to this 1099-Misc want to know if it came from my employer and/or from my 'main job'.  I haven't worked for my 'employer' or at my 'main job' for nearly two years.  Do I treat these questions related to this one 1099-Misc as if I am still involved with my employer or 'main job' since it came from the 'main job' I retired from?  Or do I just say 'NO' it did not come from my 'main job' or employer since I'm no longer employed?