Nancy Reagan
(Photo : Official White House photographer/Wikimedia/CC)
Former first lady Nancy Reagan's memorial service is held at Ronald Reagan Presidential Library on March 11.

America is paying its final tribute to former first lady Nancy Reagan today at her burial service at Ronald Reagan Presidential Library in Ventura County, California. She died on March 6, at the age of 94.

A musical opening to the event will be held at 10:15 am (PST) which will be performed by Santa Susana High School Advanced Women's Choir and Marine Corps Camp Pendleton, followed by the funeral at 11 am.

Nancy Reagan will be buried next to her husband and former President Ronald Reagan at the library.

Many have been gathering near the library during the last three days to pay their respects to the erstwhile first lady.

About 10 close relatives from presidential families, including George W. Bush, Michelle Obama and three other first ladies will be attending the service, along with numerous other dignitaries and Hollywood celebrities.

A renowned socialite, she was also a former Hollywood actress of the 1940s and 1950s, and married Ronald Reagan in 1952, who went on to become the 40th President of US in 1981. He died when he was 93 years old, in 2004, after suffering from Alzheimer's disease for 10 years.

Nancy and her husband both attended the Bel-Air Presbyterian Church in California, and are known to have contributed generously to the poor.

Canadian Prime Minister Brian Mulroney, a close friend of the couple, will be reading a letter from Ronald Reagan to his wife, while eulogies and memories will be shared by their son Ronald Prescott Reagan and daughter Patti Davis.

Her niece, Anne Peterson, will be reciting Proverbs 31:10-31, and her nephew Barton Hegeler will be reading 1 Thessalonians 4:13-18.

Reverend Stuart A. Kenworthy, Vicar of Washington National Cathedral will be presiding over the memorial service.

"Nancy Davis Reagan has led a remarkable life - as an adoring daughter, a loving mother, a devoted and sensitive partner, and a worthy ambassador for our country as First Lady. I have seen her cope bravely with life's most difficult challenges, exuding grace and dignity and strength. I am so proud of this woman...I can't imagine life without her," said Ronald Reagan in 1994 in a message to the Junior League of Los Angeles tribute dinner honoring Nancy Reagan.