Michael Tropp has met seven presidents and visited all 39 presidential gravesites. This presidential history buff just paid his respects to Jimmy Carter.

President Jimmy Carter’s legacy of giving back endures in several nonprofits through which he and his wife, Rosalynn Carter, worked in the almost 50 years after they left the White House.

Perhaps Carter’s most revealing poem, “I Wanted to Share My Father’s World,” concerns the man who never got to see his namesake son’s achievements. He wrote that he despised Earl’s discipline, and swallowed hunger for “just a word of praise.”

The Carters, who long put their faith into action, were in Milwaukee in June 1989 as part of a Habitat for Humanity project building homes. They, along with scores of volunteers, hammered, sawed and painted to construct six homes near North 23rd and West Walnut streets.

The Carters met and raised their family in Plains, Ga. and returned to their beloved hometown after Jimmy's presidency

President Jimmy Carter will continue to lie in state Wednesday after his remains arrived in Washington a day earlier as part of state funeral rites. The Georgia Democrat and 39th president died Dec. 29 at the age of 100.

"From the Plains Peanut Festival to the Governor’s Mansion, to the White House—and to communities around the globe—they remained grounded and humble, and Plains always remained home in their hearts.”

They had four children: Jack, Chip, Jeff, and Amy. The Carters have 25 grandchildren and great-grandchildren, The Carter Center said in a statement following Rosalynn's death. Their oldest son, 77-year-old John William "Jack" Carter, followed his father into politics.

Former President Carter’s marriage to first lady Rosalynn Carter played a defining role in his life, spanning 77 years and making it the longest presidential marriage in U.S. history. Jimmy

It’s the world’s most exclusive fraternity and, on Thursday, all five members of the so-called presidents club will gather to honor one of their own.

The public will be able to pay their respects to the 39th president at the U.S. Capitol until his state funeral Thursday morning.