A sidesperson, also known as a sidesman or usher, in the Anglican Church is responsible for greeting members of the congregation, overseeing seating arrangements in church, and for taking the collection. In England they are usually appointed by the Annual Parochial Church Meeting and receive guidance in their duties from the churchwardens.
In the Anglican Church of Southern Africa "Sidesmen may be appointed in any Parish to perform such duties as the Parish Council shall determine."
References
Sidesperson Wikipedia(Text) CC BY-SA