I worked at the local Piggly Wiggly grocery store at 14 as part of a school based program. At the time I really did love it, and really enjoyed getting to know the people in the town, and the little bit of $$ that I received was icing on the cake.
Babysitting. My neighbor was a hairdresser with a salon in the basement of her home so I would watch her little girl while she worked. I was 10. My first "real" job was at 15 where I was a clerk in a pharmacy. Loved it. It was the desired job in my little community and I had it all through HS and summers and school breaks during college.
Detassling corn the summer after freshman year of high school. I HATED it!!!!!!! I stuck it out since it was only for a few weeks, but I didn't sign up again after that year.
if you count babysitting than it would be a lot of different families. But my first job outside the home front was a waitress at a billards club. I only did it for a summer and it went bankrupt so the guy still owes me my last paycheck. I don't think I will ever see that $20