No, it belongs to one of the main Protestant groups, known as the Anglicans (or the Episcopalians in the USA).
First Methodist Episcopal-Holy Trinity Greek Orthodox Church was created in 1914.
First, there are numerous churches called St John's Episcopal Church worldwide. Second, since the name is St John's Episcopal Church, then it means they are Episcopal. An Episcopal Church is not a Catholic Church.
Methodist Episcopal Church was created in 1784.
The Catholic, Eastern Orthodox, Coptic Orthodox, and Oriental Orthodox Churches practice infant baptism, as do Anglicans, some Presbyterians and Lutherans, and various other Protestant denominations, including many 'non-denominational' churches. Among less traditional Protestants, baptism practices often vary church-by-church.
Aidan of Lindisfarne is honored in the Catholic Church, and also in the Anglican Communion, the Episcopal Church, the Eastern Orthodox Church and the Lutheran Church, so it is possible that a church named after him could be Catholic or of another denomination.
Some Christian denominations that do not believe in the rapture include the Roman Catholic Church, the Eastern Orthodox Church, and some mainline Protestant denominations such as the Episcopal Church and the United Methodist Church.
American Episcopal Church was created in 1968.
Episcopal Church of Texas was created in 1841.
Reformed Episcopal Church was created in 1873.
Scottish Episcopal Church's population is 54,000.
Scottish Episcopal Church was created in 1712.
Bangor Episcopal Church was created in 1830.