First off, let me put in the disclaimer that 1) I have no idea who "Sir Gerald Kaufman" is and 2) I am neither Catholic nor Jewish, although I have had a great many friends who have attended catholic school. With that out of the way...
Catholic schools are open to anyone who's willing to pay the tuition rates, regardless of religious background. Many people just choose catholic schools because they believe them to be superior to their public schools (and they often are). The caveat, however, is that classes are geared around the perspective of Catholic doctrine, including catechism classes.
In short, while it is not a prerequisite that you be catholic to attend a catholic school, classes and policy are often structured according to catholic thought. The only problem in this situation would be if the orthodox family would be opposed to the teachings in the school (which, as I mentioned, follow a catholic line of thought); as far as the school goes, it's not a problem.
The Answer is Yes.A Catholic School will give admission to students of any denomination or faith. There is sometimes a standard interview process which needs to be cleared out by the student, before being admitted to the school.
The motto of All Hallows Catholic School is 'Testimonium Perhibere Veritati'.
The motto of Annunciation Orthodox School is 'The School for Hearts and Minds'.
Annunciation Orthodox School was created in 1970.
National Orthodox School was created in 1960.
Serbian Orthodox Secondary School was created in 2005.
2
Gerald Ford went to South High School in Grand Rapids, Michigan.
Gerald R. Ford School of Public Policy was created in 1914.
The Roman Catholic Church recognizes as Also Catholic the Orthodox Churches, Episcopal, and Church of England. Also, these religions recognize the Roman Catholic Church. While all schools have their own rules for admission, there should be no religious reasons why your Catholic child could not attend a Church of England school.
Catholic AnswerIt's just Catholic, not Roman Catholic. Roman is an epithet first commonly used in England after the protestant revolt to describe the Catholic Church. It is never used by the official Catholic Church. The primary duty of a Catholic school is to educate Catholic children in their religion while fulfilling the other educational needs. It would be pretty difficult to ensure Orthodox Catholic education by someone who believed something different.
All Saints Greek Orthodox Grammar School was created in 1990.