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McMaster & Barker
In 1852, Job C. McMaster and Mr. Barker built a brick-making plant at the corner of Wyatt (Second) and
Robinson (K) streets in Antioch. McMaster was a carpenter from Sullivan, Maine, who came to Antioch in
1851 and helped lay out the town of Antioch. He was also engaged in the stock-raising and dairy business
and served as a member of the Board of Supervisor and town marshall. Nothing is known of his partner
Mr. Barker. The clay deposit was mined from a pit on the west side of the
plant and can still be seen today as a shallow depression. Common building bricks were manufactured here
and used locally. The bricks were hand-molded. The kilns, which were probably field kilns fired by
wood fuel, were first located where the Roswell Hard brick house stands today at 815 First St. McMaster
and Barker sold their brick plant to Isaac Nicholson in 1868. See the Albion Pottery for the continuation
of this history.
McMaster & Barker Brick
View of the end of a McMaster & Barker common brick bat.
View of the top face of a McMaster & Barker common brick bat.
View of the bottom face of a McMaster & Barker common brick bat.
View of the interior of a McMaster & Barker common brick bat. Note the porous
clay body and absence of clasts.
Common brick is orange red to pale red, mostly uniform in color. The sides are sand-struck with an irregular
lip up to 1/4 inch around the top edges. The sides and edges are uneven. Fine transverse grooves can be
seen on some sides or ends. The bottom face is flat and may have minor pits. The top face is highly pitted
with rounded chuncks of red clay, or occasional subrounded cream clay, up to 1/2 inch across. The top face has
longitudinal grooves and is highly pitted on an uneven surface. Edges are uneven and chipped. Corners are
rounded. The interior is remarkably devoid of mineral or rock clasts, with only a few cream or gray subrounded
shale. The interior is highly porous with tiny holes throughout constituting about 5 percent in volume. Some
interiors display darker cores. Sand-molded, soft-mud process.
Length unknown, width 3 7/8, height 2 1/4.
Crawford, J.J. Structural Materials. California State Mining Bureau 13th Report of the State
Mineralogist, 1896, p. 614.
Copyright © 2007 Dan Mosier
Slocum, H.A. History of Contra Costa County. W.A. Slocum & Co., San Francisco, 1882.
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