Born 1798 in Woodstock, Vermont, Squire Hezekiah Williams graduated from Dartmouth College in 1820, and settled in Castine in 1825.  In May of the next year, he married Eliza Patterson of Belfast.  they lived in the house right below the church on the corner of Court and Main Street.  They had four sons and four daughters.  Their daughter Lucia fell in love with Lemuel Atherton, a brilliant young lawyer who lived on the corner across Court Street.  When her father didn’t approve, she “took to her bed” until he gave in.  They happily married and moved to Dixon, Illinois, where he became the mayor.  When Hezekiah Williams died in 1856 the rest of the family moved to Illinois.

In 1832 Williams was appointed to the Board of Health when cholera was prevalent in this country.  The board established a quarantine for all vessels, inspected every house in town, and compelled the removal of all “nuisances and filth.”  The measures taken were effectual, since no cholera cases occurred here as had happened in some other coastal towns.  Although a respected member of the Hancock Bar, Williams was more extensively known in political rather than professional circles.  He held, at different times, various offices of honor and trust in town and state.  In 1845-47 he represented this district in Congress.  He belonged to the Democratic Party.  Mr. Williams was a prominent and zealous member of the Masonic Order.  At one time he was the Master of the Hancock Lodge, and in 1841 he was elected Grand Master of the Grand Lodge of Maine.

Hezekiah Williams died in Castine on October 1856, aged 58 years and 13 days.  His wife died 1866 and her remains were brought back from Illinois and are interred in the Castine Cemetery.

Margaret Perkins Brooks was born in 1790.  Her parents, Joseph and Phebe, were considered wealthy for the time and had a large house on upper Main Street.  Margaret was 24 when the British occupied Castine in the winter of 1814 -15.  She married Captain Barker Brooks of Massachusetts a year or so later.  He established a shipyard in Camden in 1806 and probably had a business in Castine at that time as well.  they had eight children.  Margaret died when their son Noah, the youngest, was seven.  Their house is still on the common in Castine, at the top next to the Adams School, and is referred to as the Gardner house.  Noah became a famous writer.  He published stories about growing up in Castine, among his other fine works.  Noah became a close acquaintance of Abraham Lincoln, and was a frequent visitor to the White House.

Rev. Alex Louden was a well respected pastor of the church.  He was a member of the American Board of Commissioners for Foreign Missions and a member of the Maine Congregational Ministerial Relief Society.  The Dr. Mary Cushman Circle had the window commissioned and it was installed shortly after his death in 1973.  It was made by the Connick Studio of Boston, one of the last few windows made before the studio closed.  The design of the window was based on the "excellent comments" written by the Dr. Mary Cushman circle to help the studio design a window to reflect the church's devotion, including significant personal symbolism reflecting the Loudens' service.  At either side of the scroll for the memorial text are organs suggesting Mrs. Louden's love of music and her activities in that field.  The shield above is inscribed with St. Andrew's Cross wreathed with thistles recalling Mr. Louden's Scottish origin.  The flowers suggest his love of gardening, while the two pine cones represent the State of Maine.  The dominant symbol above is the Ship of the Church, with the cross for the mast and again the inscription on the sail.  This is an excellent symbol of dedicated devotion to the church and its steadfast progress through stormy seas.