Actually,
The first American president to participate in a D-Day commemoration in Normandy was Ronald Reagan on the 40th anniversary of the invasion, June 6, 1984. He visited only that one time during his eight-year term.
Reagan's successor, George H.W. Bush , never attended at all.
Bill Clinton attended only once, on the 50th anniversary of D-Day in 1994.
George W. Bush attended only twice during his term of office: on Memorial Day 2002 and on the 60th anniversary of D-Day in 2004. (He also, in 2001, dedicated a stateside D-Day memorial in Virginia.)
As stated above, Barack Obama has attended only once, on the 65th anniversary of D-Day in 2009.
Between 1944 and 2012 — a span of 68 years — exactly four U.S. presidents have attended D-Day memorial ceremonies a total of exactly six times. Barack Obama was one of them.
The historian of the US State dept has a record of all US presidential visits to France which you can find here:
http://history.state.gov/departmenth...esident/france