Should Mitt Romney win the presidency Tuesday, it will mark an historic first: a Mormon couple moving into the White House.

What would this mean and look like?

Would there be "dry" state dinners, since faithful Mormons don't do alcohol? Would Secret Service tag along to sacred ceremonies only open to worthy church members? What book would a President Mitt Romney use to take his oath of office?

We can't be absolutely sure about all the answers. But if the practices and homes of devout Mormons like the Romneys -- not to mention his history as governor of Massachusetts -- are any indication, we can begin to paint a picture of what a Romney-inhabited White House might look like.

First things first: About that oath

Members of The Church of Jesus Christ of Latter-day Saints believe the Bible is the word of God. But they also believe this about the Book of Mormon, which is subtitled "Another Testament of Jesus Christ."

Given the importance of the Book of Mormon, this question seemed worth asking: Any chance Romney would place his hand on a Book of Mormon at his swearing-in ceremony?

"No, no way Romney would do that," Jana Riess, a religion scholar, co-author of "Mormonism for Dummies," and blogger for Religion News Service, wrote in an e-mail message. "I'm not aware of any Mormon who has sworn on the Book of Mormon instead of the Bible for national office. (I'm not aware of any local officials who have done this either.)"

Most likely, Romney would go back to the Bible he used in 2003 when he was sworn in as governor of Massachusetts -- the same one his father, George Romney, reportedly used when he was sworn in as Michigan's governor in the 1960s.

Beyond paint and fabric swatches

Having never been invited over for a meal, we can't pretend to know anything about the Romney aesthetic when it comes to home decoration. But we wondered and asked about specific items that tend to hang in Mormon households.

Randall Balmer, an award-winning historian, author and chair of the Department of Religion at Dartmouth College, speculated that the Romneys -- like plenty of Mormons -- might display artwork featuring a depiction of Jesus and a photograph of LDS Church President Thomas S. Monson, considered a "prophet, seer and revelator" by members of the church.

Another possibility, said Riess, would be a photo of the Salt Lake Temple where Mitt and Ann Romney were married and "sealed" for eternity in a sacred ceremony in 1969.

Then there's something commonly known as the "Proclamation on the Family," which is often framed and displayed in homes -- though rarely in upper-class households, said Joanna Brooks, author of "The Book of Mormon Girl: Stories from an American Faith."

The proclamation features words set forth by LDS Church leadership in 1995, highlighting family and gender responsibilities. Among the points made: Marriage is between a man and woman; the primary responsibility of fathers is to oversee and provide for families; and mothers must first and foremost care for the children.

All of these items could show up in the White House, said Grant Bennett, an old Romney friend who spoke at the Republican National Convention and has known the Romney family since they met through church in 1978.

But he said, "the most quintessential Mormon item would be pictures of their family," including those of ancestors, because "families are forever" and bound for eternity in the Mormon view.

Bennett also suggested that a verse or two of Scripture that is particularly meaningful to the Romneys might be framed and on display.

If any of these things would hang in the White House, they would likely appear in the private quarters where first families are free to do what they please.

That doesn't mean Romney wouldn't be allowed to honor his faith in some way in the Oval Office, but decorative decisions in public rooms -- the spaces visited on tours -- are subject to committee discussions and advisers on historic preservation, explained Melissa Naulin, assistant curator in the Curator's Office of the White House Museum.

Can I get a cup of coffee? How about something stronger?

In accordance with a revelation received in 1833 by LDS Church founder Joseph Smith, something known as the "Word of Wisdom," faithful Latter-day Saints abstain from coffee, tea and alcohol.

Does this mean a return to the days of "Lemonade Lucy," the posthumous nickname given to the wife of Rutherford B. Hayes, the 19th U.S. president, who banned alcohol from the White House?

No, said Cabinet members from Romney's gubernatorial era and a current top aide. They said this health-related observance is not one the Romneys would impose on or expect of others.

"As governor, when Mitt Romney entertained at official functions in the evening, alcohol was served along with soft beverages," said a senior aide who asked not to be identified in stories about religion.