What progressive organization had a goal of providing food and shelter to the slum-dwelling poor

The Salvation army is the progressive organization that has the goal to provide food and shelter to the slum-dwelling poor.

Explanation:

The salvation army is a progressive organization created by the protestant Christian church in alliance with soldiers, officers and adherents called Salvationists. That seeks to bring salvation to the poor, hungry and destitute by providing them their physical and spiritual needs. They cover around 130 countries by providing their resources to the needed in the means of charity shops, shelters, and humanitarian help. It is closely related to the Christian church but it doesn't practice the holy baptism or communion. It also provides ranks to its members and it was created in London by William booth and his wife.