Father John Ryan was a prominent American priest and theologian known for his contributions to social justice and Catholic social teaching. He was born in 1869 and became a significant figure in advocating for the rights of workers and the poor. His work emphasized the importance of economic justice and the moral responsibilities of society. Ryan is best known for his writings, including the influential book, A Living Wage, which argued for fair wages and better working conditions. He played a key role in shaping the Catholic Church's stance on social issues during the early 20th century, influencing both religious and secular discussions on social reform.