If you mean, "Did his marriage result in any children?", then the answer is no.
John Clerk. His son, James, adopted the name "Maxwell" when James inherited some land from the Maxwell family.
According to Wikipedia they were John Clerk Maxwell and Frances Maxwell.
James Clerk Maxwell
James Clerk Maxwell is the author of the Maxwell equations, which are fundamental to our understanding of electromagnetism.
James Clerk Maxwell died in die
James Maxwell find out the elecromanetic feld
James Shaw Maxwell died in 1928.
James Shaw Maxwell was born in 1855.
James Maxwell Moody was born in 1940.
James Laidlaw Maxwell was born in 1836.
James Laidlaw Maxwell died in 1921.
James Maxwell - footballer - was born in 1900.