The youth football league, GEJFA, is asking for each system (club) to provide three more refs per system. This could be high schoolers on up. The pay is pretty good, as you can ref 2-5 games per day and receive $25-$40 per game.
Please reach out to email@example.com if you or a member of your family is interested. There will be training and you will always be scheduled with senior level refs. They also work with scheduling to keep you local.
For more information:
FAQ (slightly outdated, as pay has increased): http://www.gejfa.org/doclib/Officials%20FAQS.pdf
Hand book (slightly outdated, as pay has increased): http://www.gejfa.org/doclib/Referee_Handbook2.pdf