Jenna Bush and Henry Hager: Married!

It's official: Jenna Bush and Henry Hager got married on Saturday!

This made one of George W. Bush's twin daughters the first daughter of a sitting United States president to exchange vows in 16 years.

The down-home setting was a lakeside ceremony at President Bush's secluded 1,600-acre Prairie Chapel Ranch in Crawford, Texas.

Pastor Kirbyjon Caldwell of Houston, Texas, presided over the ceremony before a four-foot limestone cross and altar - the president's idea for the event - which will stand as a permanent landmark on the Bushes' property.

File photos of Henry Hager and Jenna Bush, who made it official Saturday.

"This is a joyous occasion for our family, as we celebrate the life ahead of Jenna and her husband, Henry," the president said.

"It's also a special time for Laura, who this Mother's Day weekend will watch a young woman we raised together walk down the aisle."

A source at the ranch said that the president alone, in traditional style, was escorting the bride to the altar. A White House spokeswoman said she did not know if Jenna Bush planned to take the name of Henry Hager.

Dinner and dancing for 200 guests - including family and close friends, including longtime George W. Bush advisers Karl Rove and Karen Hughes - were being held under tents at the ranch.

Jenna Bush, 26, wore an embroidered organza Oscar de la Renta gown, and was attended by twin sister Barbara Bush, the maid of honor, who wore a dress of moonstone blue shimmer with a silver sash.

De la Renta, a close friend of the family, also designed First Lady Laura Bush's deep turquoise "mother-of-the-bride" gown.

Henry Hager's brother, John, stood as Best Man.

In keeping with Jenna's desire for an "organic and natural" feel to the wedding, the men dressed in suits - not black tie.

Dancing was accompanied not by a fussy orchestra, but by Nashville-based wedding singer Tyrone Smith, otherwise known as Super T.

Henry Chase Hager, whose father of the same name is a prominent Virginia Republican, celebrated his 30th birthday Friday amid wedding festivities that included a rehearsal dinner and "Texas-sized" afterparty.

A former aide to Karl Rove, he met Jenna Welch Bush in 2004, when both of them were working on her father's (successful) reelection campaign.

Finishing up his final year at the University of Virginia's Darden School of Business, he is expected to get his degree later this month and then begin work for an energy company based in Baltimore, Md.

He and Jenna recently bought a townhouse there.