In 1976 he received a Master of Arts in Church History from The Catholic University of America in Washington, D.C.[2] Since 1978 he has worked to increase the education and basic health care of the poor and mainly non-Christian people of Pakistan.
After the local population had opted for using the Sindhi alphabet, with a few minor changes, people gathered proverbs and sayings and launched the first Parkari Kohli newspaper, Prem Paracha.
He has chaired the Board of Governors for the Centre of Academic Excellence,[4] a project he initiated in 2007 to provide educational, spiritual, moral and personal formation for 100 Catholic boys.
[5] The St. Vincent de Paul Society of Victoria, through its overseas development initiatives, is providing ongoing financial support for McCulloch's health and educational programs.
[3] In October 2012, the head of the Vatican's Pontifical Council for Promoting the New Evangelization, Archbishop Rino Fisichella launched Parts I and II of the Catholic Catechism in Urdu.
[4] On 25 March 2012, more than 600 people gathered at St Anthony's Church in Karachi for a special Mass to celebrate Sister John Berchmans Conway RJM and McCulloch receiving the country's highest civilian award.