One for the social historians out there -

I've come accross a Burial Register entry for Sunderland Parish church, 8th April 1820, which has Ann Emerson's address shown as 'PoorHouse'
However my impression is that the family were employed and relatively well off. The husband remarried in 1821. There is a death of a child in 1823 with an 'outside' address given.

So, Is Poor House synonymous with work house? Why would Ann be in the Poor House without the family? Could it be an Infirmary of some sort?

I've seen this site https://www.workhouses.org.uk/Sunderland/ but can't see a definitive answer to my queries.

Any thoughts?

Cheers, MTS