This document provides references for a paper about how play allows children to develop, express themselves, and form social connections. It lists over 30 sources, mostly websites but also including some unpublished photos. The references cover a wide range of play activities including using a playhouse, participating in singing games and morris dances, playing with a parachute, board games like Scrabble, educational games, manipulating and tasting food, visiting a farm, riding bikes, playground activities, sports, playing with pets, and listening to classical music.