Simon G. Elliott (1828-1897) was an American surveyor, cartographer, and railroad promoter. He is credited with creating two important maps surveying the locations of remains on the Gettysburg and Antietam battlefields. Life and career Simon Green Elliott was born in Pittsfield, New Hampshire on March 27, 1828. He was inspired by the Gold Rush to move to California in 1855. He began a career as a surveyor by 1856. Several years later, he successfully completed a survey of a proposed rail route between Nevada and Northern California for the Sacramento, Placer and Nevada Railroad Company, moving him toward the railroad industry. Perhaps related to this project, he produced at least one map of California, a view of "Central California: showing the different railroad lines completed & projected" published in 1860. In 1863, he was appointed as the chief engineer of the California and Oregon Railroad Company. He was tasked with surveying a route for a track planned between Marysville, California and Portland, Oregon. After several months, however, he and his colleagues had run out of both time and funds. They quarrelled, and Elliott left the team to return south. He decided to travel east to present a claim to Congress and seek land grants and other aid for the project. He departed in late fall of 1863, and arrived in New York City on 18 January 1864. Elliott met with government officials in Washington, D.C. on multiple occasions throughout February 1864. Ultimately, however, he was unsuccessful: the railroad bill before Congress that would have provided funds for Elliott and his colleagues did not pass. During his time in Washington, he created his maps surveying the Antietam and Gettysburg battlefields. Elliott remained on the East Coast through the following spring, when he married Cornelia Blanchard on March 7, 1865, in her hometown of Weymouth, Massachusetts. The following month, he returned to California, arriving in San Francisco on April 2, 1865. He seems to have travelled back and forth between California and Massachusetts for the next decade, and together he and Cornelia had four children. He appears to have been undeterred by his failure to complete his survey of the planned California-Oregon rail line. Several years later, he embarked on a similar venture under the name of the Oregon Central Railroad Company of Salem; this attempted partnership crumbled under Elliott's financial mismanagement and possible fraud, and was taken over by Ben Holladay,