William Booth was a British Methodist preacher who founded The Salvation Army, a Christian organization known for its charitable work and social services. Booth was a prominent figure in the 19th century social reform movement and dedicated his life to helping the poor and marginalized in society. His work with The Salvation Army had a significant impact on addressing issues of poverty, homelessness, and social injustice. Booth's legacy continues to inspire others to engage in philanthropy and community service.