Complex sentence: He has served as a trustee of the Boys Brotherhood Republic (now part of the Henry Street Settlement), a self-governing youth club on the lower east side of Manhattan created in the 1930s to provide after school activities for underprivileged young men.
Split into simpler sentences: He has served as a trustee of the Boys Brotherhood Republic (now part of the Henry Street Settlement), a self-governing youth club on the lower east side of Manhattan. It was created in the 1930s to provide after school activities for underprivileged young men.