Gregory Gross

Gregory Gross

Astronomy

Favorite Objects in the Sky

Special Events

Urban Observing List for Small Telescopes

Astronomy Weather for Portland, Oregon

Helpful Resources for Beginners

Portland Archival Photos

Horse-drawn Portland, 1883-1919

Portland Becomes Modern, 1920-1945

The Automobile City, 1946-1972

Professional Work

Database Development

Data Integration

Data Warehousing

Business Intelligence