David O. Wilson


Roles


Masonry Magazine July 1978 Page. 5
July 1978

Pictorial Highlights From the IMI Promotion Meeting

1-John Heslip, Masonry Institute of Michigan: Emerick Zitelli, Masonry Institute of Western Pennsylvania: Paul Lenchuk, National Concrete Masonry Association; Paul Rosensteel, Masonry Industry

Masonry Magazine May 1972 Page. 27
May 1972

Colorado Holds Fourth Annual Conference

An estimating seminar for mason contractors and a first-aid safety class for their key men highlighted activities at the 5th annual conference of the Colorado Mason Contractors Association at the Regency R

Masonry Magazine May 1972 Page. 32
May 1972

Colorado Holds 4th Annual Conference

About 200 bricklayers attended the 10-hour course in first aid conducted by John Kelley, training center supervisor, U.S. Bureau of Mines in Denver. The new OSHA law requires a crew to have a member qualified

Masonry Magazine December 1971 Page. 82
December 1971

MCAA Trade Show Exhibitors

STONE CONSTRUCTION EQUIPMENT
341 Main
Honeoye, N.Y. 14471
W. Keith Stumbo, Jim DeArmond, John Hourigan, Alan Stone, Robert Donnelly, Felton Henry

STRUCTURAL CLAY PRODUCTS INSTITUTE
1750 Old Mea