 Christian became one of the most respected and successful men in his profession and was highly regarded by many leading architects of the Victorian era.Many became personal friends, particularly Samuel Sanders Teulon (1812–73) who also lived in Hampstead and designed his masterpiece St. Stephen's Church there, and Horace Jones (1819–87) later architect to the Corporation of the City of London (both were companions on the Continental tour of 1841–42) who was knighted and designed the great Smithfield Meat Market, Billingsgate Fish Market and Leadenhall Market for the city.George Edmund Street (1824–81), designer of the Royal Courts of Justice in the Strand in London, was a great influence on his church work as was John Loughborough Pearson (1817–97), the architect of Truro Cathedral and St. Augustine's Church, Kilburn, who was a close friend and married Christian's Isle of Man cousin Jemima in 1862 (Jemima's brother Joseph Henry Christian (1832–1906) became a partner in Christian's practice in 1874 together with a former pupil Charles Henry Purday (d.1900), though work continued to be carried out in Ewan Christian's name only).