Mason-Foster House
Del Rio, Val Verde County, Texas
Marker Inscription
A native of New York, local businessman James H. Mason (1835-1916) constructed his home here shortly after he purchased the site in 1887. He later developed a spring on the property for mineral baths and a medicinal drink. John J. Foster (1867-1935), a Del Rio attorney and civic leader bought the residence in 1905. During his ownership major additions were made to the home, originally a four-room frame structure. Interior detailing included artwork by Foster's wife Mary (1868-1958). The residence remained in the foster family until 1962. (1980)
Erected by Texas Historical Commission
The Story
New York transplant James H. Mason built a modest four-room frame house on this Del Rio site soon after buying it in 1887, later developing a spring on the property for mineral baths and a medicinal drink. In 1905 attorney and civic leader John J. Foster bought the place and greatly enlarged it, and his wife Mary added artwork to its interior detailing. The home stayed in the Foster family until 1962.
Why it matters
Homes like this trace how enterprising newcomers built up a frontier border town, turning natural springs and personal ambition into the civic fabric of Del Rio.
The story behind this marker
AI contextThe era
In the 1880s, Del Rio was a growing town on the Rio Grande, at the edge of the arid borderlands of southwest Texas. Val Verde County was newly organized, and the arrival of the railroad through the region linked this remote border country to San Antonio and the wider nation.
Water was everything here. Springs made settlement possible in dry country, and across America at the time, mineral springs held a special attraction. Many people believed that bathing in or drinking mineral water could cure all kinds of ailments, and spring resorts and bottled "healing" waters were a popular business.
By the early 1900s, in the Progressive Era, towns like Del Rio were building courthouses, schools and civic groups, and lawyers and businessmen often led that work. The Mason-Foster House reflects both eras: frontier enterprise and the rise of a settled civic life.
People & events
James H. Mason was born in 1835 and came to Del Rio from New York, a long way from home. After he bought this site in 1887, he soon built a house here. It started as a simple four-room frame home.
Mason was an entrepreneur. He developed a spring on the property and used it for mineral baths and a medicinal drink, a typical venture for an age that believed strongly in the healing power of water. He lived until 1916.
In 1905 the house went to John J. Foster, a Del Rio attorney and civic leader born in 1867. The Fosters greatly enlarged the modest frame house. Foster's wife, Mary, who lived from 1868 to 1958, added her own artwork to the interior, leaving her personal mark on the home. The Foster family owned the house until 1962, well over half a century.
Its place in the American story
This house captures a familiar American story: newcomers from established parts of the country moved to the frontier and helped build new communities. A New Yorker in a Rio Grande border town was part of a nationwide migration that reshaped the West.
Mason's mineral-spring business connects Del Rio to the wider 19th-century craze for "taking the waters," when springs across the country were promoted for health and relaxation.
Mary Foster's artwork is a reminder that women often shaped the character of homes and communities in ways the records don't always capture. Her contribution lives on in the house itself, and it offers a glimpse of women's creative lives in a small Texas town in the early twentieth century.
If you visit
As you look at the house, try to picture its history in layers. At its core is Mason's original four-room frame home, and around it are the major additions from the Foster years. Seeing how a modest house grew along with its owners' fortunes is part of the fun.
Mary Foster's artwork is part of the interior, so you may not see it from the street. Unless the house is open to the public when you visit, admire it from outside and respect the privacy of its current occupants.
Del Rio makes a great base for exploring the borderlands of southwest Texas. Spend time learning how springs and water shaped this dry country, and the story of Mason's spring on this very property will make even more sense.
Written by AI to add context, grounded in the marker’s inscription and the historical record. The inscription above is the original, unaltered text.
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Related people
- · James H. Mason
- · John J. Foster
- · Mary Foster
Themes & tags
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