12/10/2026
Carved in Stone: The Tombstones and Crypts of Riverside’s Early Memorial Industry:
In the late nineteenth and early twentieth centuries, communities like Riverside relied on a regional network of quarries, monument dealers, and stone craftsmen to supply the marble and granite used for tombstones, crypts, and civic memorials. As the Inland Empire grew, so did the demand for durable grave markers, and the area’s geology made local stone an essential part of its commemorative landscape.
One of the most important sources was Slover Mountain in Colton, long known as Marble Mountain. Beginning in the 1880s, the Colton Marble Lime Company quarried white, clouded, gray, and black marble there, distributing it throughout Southern California. Its stone was used in fine homes in Los Angeles and San Francisco, and later in large industrial operations when the California Portland Cement Company took over quarrying in the 1890s. For Riverside, Colton was the nearest major marble supplier, and its products were widely used in both domestic and funerary architecture.
Riverside’s undertakers often served as monument dealers, reflecting the Victorian-era connection between burial care and memorial production.
Stephen Squire, one of Riverside’s best‑known undertakers, acted as an agent for the Colton Marble Company and the Pacific Marble and Granite Company of Los Angeles. His advertisements offered American and foreign granite and marble monuments, tombstones, mantels, and statuary, making him a central figure in the distribution of Inland Empire stone. Families commissioning substantial memorials typically worked through dealers like Squire, who had direct access to regional quarries.
The Dyer family’s crypt at Olivewood Cemetery is one of the most prominent examples of this tradition. Built during the period when Colton supplied most of the region’s marble, and at a time when Squire was actively selling stone from those quarries, the crypt’s material and scale strongly suggest that it was part of the same local supply chain. While no surviving invoice identifies the quarry source, the historical context makes it very likely that the Dyer monument was constructed using marble from Slover Mountain or another closely linked regional supplier.
A marble carriage step from Otis Dyer’s home, now preserved at Heritage House, provides another tangible connection to this early stone trade. Domestic features like carriage steps, thresholds, and mantels were often made from the same materials used for monuments, reflecting the craftsmanship and availability of local marble. Together, the Dyer crypt and the carriage step illustrate how the marble and granite industry shaped both the private homes and the public memorials of Riverside’s early decades.
The Inland Empire’s stone economy was also influenced by large operations such as the Declezville quarries near Fontana, which supplied granite for major Los Angeles projects and employed dozens of workers. Craftsmen who migrated west after the Gold Rush brought established carving traditions with them, introducing Victorian motifs, symbolic imagery, and upright markers that defined the era’s memorial style. Over time, granite became the preferred material for grave markers due to its durability, though economic downturns occasionally pushed families toward less expensive marble or metal markers.
Together, these quarries, dealers, and craftsmen created a regional memorial industry that left a lasting imprint on Riverside and its neighboring communities. The surviving monuments, crypts, and architectural features—such as the Dyer family’s memorials and the marble step at Heritage House—serve as enduring reminders of the materials, labor, and cultural values that shaped the Inland Empire’s early history.
Photo: Michael Bussee and Mercy Jimenez on the steps of the marble Dyer Crypt at Olivewood Cemetery in Riverside, portraying Stephen and Marion Squire, proprietors of Riverside’s most prestigious full‑service mortuary. Behind them rises the Dyer family crypt, memorializing Civil War veteran and banker Otis Dyer in an elegant structure likely built from locally quarried marble.
They will be sharing stories and serving light refreshments during Tea with the Undertaker, part of the Victorian Dark Carnival presented by the Museum of Riverside. Join them on Saturday, October 17, 2026, from noon to 4 p.m. in the gardens of Heritage House, 8193 Magnolia Avenue, Riverside.