The Bush Brothers Lumber and Milling Company was incorporated in August 1907. Barrett & Cline Lumber Company sold their mill at Spring, twenty-three miles north of Houston, to Bush Brothers Lumber & Milling Company in 1907 and opened a new lumber manufacturing plant in Huntsville the same year. It was also producing manufactured lumber at Phelps in Walker County. All timber holdings of Bush Brothers were in Montgomery County, however.
The Southern Industrial and Lumber Review in December 1908 reported that the Bush Brothers Milling and Lumber Company had purchased a new Raymond log loader from F E. Dionne & Sons of Houston. The log loader would be set up in the woods near the mills at Spring, indicating that the company had obtained timber land in Harris County. The new machine, with four men and a team of animals, could average twice the load of the normal loading crew and almost the average of a steam loader.
In 1910 Bush Brothers operated five miles of narrow gauge tram with a 20-ton Shay and twelve log cars. The logs were transferred to the standard gauge rails of the International & Great Northern and shipped nine miles to the mill where there was no log pond. Forty men were employed in the woods, but the lumber company owned only fifteen houses and a small commissary, since the town of Spring was nearby and convenient. By 1910 the company's output was being managed by the Alf Bennett Lumber Company of St. Louis.