COBLESKILL _ Assemblyman Paul D. Tonko will deliver the keynote address at the State University College of Agriculture and Technology at Cobleskill’s 91st spring commencement at 11 a.m. Saturday.

College officials said 658 students are expected to graduate, including 444 with associate’s degrees and 214 with bachelor’s degrees.

SUNY Cobleskill will also confer an honorary doctorate upon alumnus J. Glenn Eugster, who serves the National Park Service as assistant regional director for partnerships in the National Capital Region around Washington, D.C.

Tonko, D-Amsterdam, has served in the state Assembly representing the 105th District since 1983.

He has served as chairman of the Assembly Standing Committee on Energy since 1992 and has gained a national reputation as an expert on energy and utility issues.

He is a member of the Assembly Standing Committees on Agriculture, Education and Transportation, as well as the former chairman of the Legislative Commission on Rural Resources.

Eugster, of Alexandria, Va., earned an associate’s degree in ornamental horticulture from SUNY Cobleskill in 1968 and went on to earn a bachelor’s in landscapes architecture from the University of Georgia and to study ecological planning at the University of Pennsylvania.

He has worked more than 35 years with local governments, the National Park Service and the Environmental Protection Agency, helping citizens, community leaders and park managers protect and regenerate economies and ecosystems.

His work and experience demonstrate an emphasis on green infrastructure, watershed stewardship, wetlands protection, heritage conservation, sustainable development and fundraising.