The enumeration date is as you surmised the actual date the info was recorded. The official enumeration date was 1 June 1850, all questions were to refer to that date. So she probably died sometime between 1 June and Sept 11. Don.
Definition of plague. 1  an annoyance; those children are a damn plague. 2  any large scale calamity (especially when thought to be sent by God) 3  a swarm of insects that attack plants; a plague of grasshoppers. 4  any epidemic disease with a high death rate.
A critically ill child is someone: 1  who is under 18 years of age, and. 2  who is your child, step-child, foster child or child under your legal guardianship, and. 3  whose baseline state of health has significantly changed and whose life is at risk as a result of an illness or injury.