Which figure is recognized for advocating on behalf of the poorest souls in the community?

The figure recognized for advocating on behalf of the poorest souls in the community is Saint Katherine Drexel. She dedicated her life to the service of marginalized communities, particularly Native Americans and African Americans, at a time when these groups faced significant discrimination and neglect. Saint Katherine founded schools and missions to provide education and support to disadvantaged populations. Her commitment stemmed from her deep faith and understanding of social justice, leading her to use her resources and influence to uplift those in need.

Other options, while notable in their own right, do not specifically focus on the advocacy for the poorest in the same context. For example, Josie Arlington was a brothel owner who contributed to the local community in various ways but did not primarily focus on the poorest. Thomy Lafon was a philanthropist known for his contributions and community support, but his work was not exclusively directed toward the poorest. Francis Xavier Seelos was a beloved priest and missionary whose focus was more on pastoral care than on direct advocacy for the poor. Each of these individuals had admirable contributions, yet Saint Katherine Drexel's life mission aligns most closely with the advocacy for the impoverished.