Douglas had arrived at Monterey Bay on February 23, 1849, carried west by the same current of ambition that was pulling tens of thousands toward the goldfields. His gold was spiritual. Within weeks he was preaching in San Jose, calling the new assembly the Independent Presbyterian Church. By 1851, the congregation had outgrown the Juzgado and built a wooden church on North Second Street, directly across from what is now Trinity Episcopal Cathedral. The name changed on June 3, 1858, to First Presbyterian Church, a title it would carry for the next 161 years. The neighborhood it anchored became a corridor of faith: Trinity Episcopal, the First Unitarian Church, Our Lady of La Vang Parish, and the Cathedral Basilica of St. Joseph all stand within blocks of each other, forming one of the densest clusters of historic congregations in the South Bay.

The wooden church lasted barely a decade before the congregation deemed it too small. A brick replacement went up in 1863, solid enough to survive the 1868 Hayward earthquake with repairs. But the 1906 San Francisco earthquake showed no such mercy. The brick building collapsed, joining thousands of structures destroyed across the Bay Area that April morning. The congregation rebuilt once more, dedicating a new church at 48 North Third Street in April 1908. That building served for sixty years until inspectors condemned it as a fire hazard in 1968. A smaller, more modest building rose at 49 North Fourth Street in 1973. Four buildings across four addresses in 170 years, each one a response to either growth or disaster, and each a little smaller than the ambition that preceded it.

A church that lasts 170 years does not simply endure. It reproduces. In 1881, seventy-seven members departed First Presbyterian to organize the Second Presbyterian Church, which later became Westminster Presbyterian. In 1944, a committee of elders laid the groundwork for Foothill Presbyterian Church. And in 1953, roughly 250 members left to found Calvin Presbyterian Church, which itself survived until 2007. Each departure thinned the original congregation, but each also extended its reach across the growing Santa Clara Valley. The daughter churches carried the DNA of that jailhouse gathering forward into neighborhoods that Douglas could never have imagined.

On June 30, 2019, members, friends, and guest musicians filled the building at 49 North Fourth Street for a final Sunday service. The congregation had voted to dissolve. Declining membership had made the math impossible to sustain. After 170 years, the oldest continuously operating Protestant congregation in San Jose held its last hymn, its last prayer, its last benediction. The building across from City Hall still stands. The programs that served the homeless community were set to continue even after the congregation itself ceased to exist. What began in a jailhouse ended with an act of quiet generosity: the church's last gift was ensuring that its outreach would outlast its worship.