The Rev. Edmund Vasvary, 89, a retired minister and authority on Hungarian immigration history in the United States, died July 12 at his home in Washington.

Last year, the Rockefeller Foundation awarded a grant to the American Hungarian Foundation to microfilm, catalog and develop the Vasvary collection. It has been described as the foremost collection of materials on Hungarian immigration and Hungarians in this country.

Over a 50-year period, Mr. Vassvary had collected 400 notebooks, more than 20,000 file cards, 1,000 articles and many items of historical, biographical and bibliographical value.

The American Hungarian Foundation's research center in New Brunswick, N.J., plans to use the collection as a basis for a project to write a definitive history of Hungarian immigrants and their descendants America.

Born in Hungary, Mr. Vasvary was educated there and became a minister of the Reformed Church of Hungary. His church sent him to this country in 1914 and he served pastorates in Buffalo, Pittsburgh and Cleveland.

He came to Washington in 1936 as comptroller of the Hungarian Reformed Federation of America, a poistion he held until retiring in 1957.

Mr. Vasvary remained in Washington, continuing his research and writing. He was the author of more than 1,000 articles, mostly about Hungarians in this country.

He also was the author of a book, "Lincoln's Hungarian Heroes," and currently was working as a co-author on a book about Col. Commandant Michael Kovats, the first Hungarian to give his life for this country. Kovats was killed in action in Charleston, S.C. in 1779. The drill field of The Citadel is named in his honor.

In 1975, Mr. Vasvary received the Abraham Lincoln Award of the American Hungarian Foundation.

He is survived by his wife, Elizabeth Kalassay Vasvary, of the home; a daughter, Elizabeth Shapiro, of Washington; a son, Edmund C., of Lynchburg; four grandchildren and eight great-grandchildren.