Hungarian Reformed Church in America
After World War II, Hungarian people come to the United States. They established churches which were under control of the Reformed Church in their home country. In 1921 an agreement was made to be part of the American Reformed churches. This was the Tiffini Agreement. One part of these churches accepted this - today this is the Calvin Synod of the United Church of Christ - but not all. Dr Zoltan Kuthy a dean in New York and Rev. Endre Sebestyén dreamed of a separate Hungarian Reformed Church, this effort was widely supported. Independent Hungarian churches separated from these churches the first was the Independent Hungarian Reformed Church in Dubuque, Pennsylvania in 1924. The Independent Hungarian Reformed Church in America was formed. Five pastors signed the creation of this new denomination, Rev. Lajos Nánássy, Perth Amboy, NJ, Mihály Kovács, Detroit, MI, Endre Sebestyén, Duquesne, PA, Károly Vincze, Carteret, NJ, György Borsy-Kerekes, McKeesport, PA. In Dubuque they established a Presbytery. The dean was Endre Sebestyén, the janitor was István Bodnár. Sister church relations was established with the Hungarian Reformed Church.
In 1928 a General Assembly was held in Trenton, NJ and a second presbytery was created, this time the denomination consisted of 17 congregations and 12 pastors. The church had a newspaper, founded in 1921, this was the Hungarian Church (Magyar Egyház - in Hungarian) The present name was adopted in 1958. The church follows the Hungarian model and elects a Bishop, and Deans for its three classes. They hold Synod meetings in every four years. 
The Hungarian Reformed community in America was refreshed by the refugees fleeing the Soviet crushing of the abortive revolution of 1956. Although the Hungarian Reformed Church in America has faced ageing and declining memberships, the church has more recently opened several new mission churches.
The Hungarian Reformed Church in America applied for membership in the Reformed Church in Hungary in May 2009. Later the Hungarian Reformed Church in America voted to join the Reformed Church in Hungary. In the same year the church celebrated its 85th anniversary.
- See Hungarian congregations across the USA www.hungariancatholicmission.com/faith/otherhungariandenominations-us.htm
- American Hungarian Reformed Church (Allen Park, Michigan)
- Free Magyar Reformed Church of San Francisco & Vicinity (Redwood City, California)
- "Appendix B: Classification of Protestant Denominations". Pew Research Center's Religion & Public Life Project. 2015-05-12. Retrieved 2016-06-01.
- "Hungarian Reformed Church in America — World Council of Churches". www.oikoumene.org. Retrieved 2016-06-01.