The construction of extensive railways, however, and particularly the consolidation of small, experimental lines into large systems, dates from the days of the discovery of gold in California.

John Moody may refer to:
John Moody (financial analyst) (1868–1958) U. S. financial analyst and investor
John Moody (journalist) Fox News executive
John Moody (badminton) (born 1983) badminton player from New Zealand
John Moody (footballer) (1904–1963) English football goalkeeper
John M.