In 1904, when the railroad completed its expansion westward from Brownsville through the Rio Grande Valley, small towns were aligning the tracks. Rich, fertile valley territory was attractive to new settlers during the early 1900s, and land developers promoted a place where one could buy a piece of the American dream. Around the same time, immigrants from south of the border were arriving with dreams of starting a new life away from the tumult of the Mexican Revolution. Situated at the crossroads of both rail and roadways, San Juan was the optimal place to settle. Rapid agricultural growth had in turn fostered community growth. As San Juan celebrates 100 years of vitality, this book reflects and recalls why this city was known as the "friendly city in the heart of the Rio Grande Valley.