Source:
Brick and Clay Record
Kenfield-Leach Company, Chicago, IL
Volume XXIX, Number 5, November 1908
Page 479

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Business is so rushing with the Twin City Brick Co., St. Paul, Minn., that they recently required The J. D. Fate Co., Plymouth, O., to ship them a special brick cutter by express.

Source:
Brick and Clay Record
Volume XXX, Number 6, June 1909
Kenfield-Leach Company, Chicago, IL
Page 276

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The Twin City Brick Co., Minneapolis, Minn., has completed a new plant for the manufacture of drain tile from shale, which the company owns.  They expect to reduce the price of tile to the northwestern farmers through the saving of freight cost.

Source:
Brick and Clay Record
Volume XXXI, Number 5, November 1909
Kenfield-Leach Company, Chicago, IL
Page 196

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The Twin City Brick Co., Minneapolis, Minn., has completed its new plant for the manufacture of interlocking facing block and also a plant for the manufacture of drain tile.

Source:
Brick and Clay Record
Volume XXXI, Number 5, November 1909
Kenfield-Leach Company, Chicago, IL
Page 208

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Twin City Brick Co., St. Paul, Minn., W. Siwart Smit, Secy. and Gen. Mgr. – “The increase in business in our line compared with the latter part of 1908 is about 20 per cent.  It should be borne in mind, however, that in this section of the country the decrease in business during 1908 compared with the preceding year was not as much as in the middle west and in the east.  We personally do not expect another great increase in the coming year, although the prevailing idea seems to point in that direction.  The price of materials has advanced to such an extent and wages likewise that the cost of building is very much greater than six months ago and this will materially check any great expansion of building, since the building trade is fairly well caught up this year with the shortage.”

Source:
Brick and Clay Record
Kenfield-Leach Company, Chicago, IL
Volume XXXII, Number 1, January 1910
Page 76

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Source:
Brick and Clay Record
Kenfield-Leach Company, Chicago, IL
Volume XXXIII, Number 6, December 1910
Page 243