William Alfred Buckingham, governor of Connecticut during the Civil War and later a U.S. Senator until his death in 1875, was born in 1804 in a house in Lebanon, which was later moved (see comment below) by his father, Deacon Samuel Buckingham, who built a new house on the location between 1808 and 1817. The new Federal-style Buckingham house was later altered through the addition of Victorianizing features, like the bay windows on the front facade.
Samuel Buckingham House (1817)
Governor William A. Buckingham was born in 1804 in the older, 18th-century house known as the Simeon Gray Tavern at 896 Trumbull Highway (Route 87). The property was purchased in 1803 by Samuel Buckingham of Saybrook. In 1808 the proprietors of the last undivided land in Lebanon, the area known as the town green that extends through this section, sold Samuel Buckingham a strip of land from the highway so he could build a new house. He moved the 18th-century house to its present location. He built the house shown in your photograph after 1808 and perhaps not until 1817. It is Federal style with later Italianate details added about 1860. Governor Buckingham would have been lived in this house sometime after the age of four and perhaps not until the age of 13.
My information seems to be outdated: like The Connecticut Guide from 1935.
http://www.archive.org/stream/connecticutguide00connrich#page/250/mode/2up
I don’t know much that is accurate in that entry on Lebanon. I would suggest verifying anything you plan to put on your Web site from that book to keep misinformation from being continually promulgated. The writers did very little research and relied on informants such as various town officers, the oldest person in town, and so forth, who themselves were repeating “stories” from the past. The information about Redwood is a prime example. This is a house documented to have been designed and built by master joiner Isaac Fitch in 1778-79. No way it could have been the birthplace of the Rev War governor, born in 1710. And nobody knows where his parents were living in Lebanon when he was born. And so on. Use the book with care. I use it for clues, like finding the reference to New Rochelle Road–a great clue to a road now known by another name.