Maud Morlock, 91, a pioneer in social welfare and a retired homemaker services specialist for the Children's Bureau in the old Department of Health Education and Welfare, died of a thrombosis Saturday at Fernwood House in Bethesda.

A Washington-area resident since 1936, Miss Morlock lived in Arlington before moving to Fernwood House five years ago.

While studying at the London School of Civics and Philanthropy in the early 1920s, she became interested in England's homemaker service program. t

In 1936, after a number of years on the faculty of the School of Applied Social Services at Western Reserve University in Ohio, she joined the Children's Bureau, then part of the Department of Labor, and helped to initiate homemaker service programs in this country.

The service, which provides persons trained in housekeeping and other skills for homes where mothers are unable to care for their children, had approximately 5,000 participants nationwide by 1964, when Miss Morlock was honored by the National Conference on Homemaker Services for her pioneering work in that field.

Before retiring in 1959 from the Children's Bureau, which became part of Hew in 1953, she represented the bureau on national committees and at international conferences and produced a summary on homemaker services, "Home Help Services in the U.S. and Europe."

Miss Morlock was born in Fostoria, Ohio, and graduated from Oberlin College in Ohio in 1911.

She earned a master's degree in social work from the University of Chicago and worked in Chicago slums for several years for the United Charities of Chicago before moving to this area.

After retiring, Miss Morlock was a homemaker services consultant. She was a member of the National Social Work Association.

There are no immediate survivors.