Yes, the Maryland state democratic party platform does include marriage equality.
Democratic Party - Singapore - was created in 1955.
Democratic Union Party was created in 1947.
Primarily Democratic.
Libertarian Party of Maryland was created in 1971.
Populist Party of Maryland was created in 2004.
Maryland Green Party was created in 2000.
Labour Democratic Party was created on 1943-09-08.
Lithuanian Democratic Party was created in 1902.
Women's Democratic Party was created in 2004.
Democratic Party - Burma - was created in 2010.
Democratic Party of Oregon was created in 1851.