Complex sentence: Pastor Jacobus Dufort felt that something had to be done about the education of the local children and built with his own means the Dufort Institute, a school for the poor employing seven nuns soon to be called "Marullenschool".
Split into simpler sentences: Pastor Jacobus Dufort felt that something had to be done about the education of the local children. Paying from his own pocket, he constructed the Dufort Institute, a school for the poor employing seven nuns, soon to be called "Marullenschool".