Peale sometimes worked on medals for the government, taking care to exclude Longacre from the process. During the Mexican–American War, Congress voted a gold medal to Major General Zachary Taylor for his victories at Palo Alto and Resaca de la Palma. Peale engraved the design from a portrait by William Carl Brown and a model by John T. Battin. After Taylor became president, Peale designed his Indian Peace Medal; Peale also engraved Indian Peace Medals for presidents John Tyler and James Polk, working from designs or models by other men. In 1846, Peale designed and engraved the Coast Survey Medal (also called the George M. Bache medal). Peale believed that all national commemorative medals, those authorized by Congress, should have their dies lodged at the Philadelphia Mint, and be struck there, and with Patterson's support urged the issuance of medals for presidents for whom no Indian Peace Medal had been designed, such as John Adams and William Henry Harrison. This was done, but not in Peale's time—for example, the William Henry Harrison medal was designed by later Assistant and Chief Engraver George T. Morgan. These works, like Peale's Indian Peace Medals, form part of the Mint's Presidential series, which continues to the present day.