In the 1860 census, both Lorenzo and his brother Henry were living in Lawrence, MA, working as laborers. They soon went back home to Turner, as Lorenzo enlisted from there on 29 Sept 1862, to serve in Co D, 23rd Maine Infantry. He was mustered in the same day, aged 25, as a private (later promoted to corporal), and served until 15 Jul 1863, when the nine-month regiment was disbanded. He afterwards returned to Lawrence, and reenlisted with the 6th Massachusetts Infantry, Co K, on 11 Jul 1864. Mustered in as a sergeant on 14 July '64, he was mustered out on 27 Oct 1864.

He was a farmer back in Turner for the 1870 census, living together with his brother Henry and his family. Henry was a "canvasser for fruit trees", an occupation Lorenzo took with him when he returned to Mass.

Lorenzo was living in Newburyport by 1877, where he was a seller of fruit and ornamental trees [street directories]. Following the death of his wife, he moved to Boston and sold real estate.

In the book LEAVITT Descendants of John Leavitt, the Immigrant, Through His Son, Israel and Lydia Jackson (pg 46), it is noted that this couple had no issue that lived. They had at least one child:

i. HENRY BROOKINGS LEAVITT, born 28 Sept 1876 in Newburyport, MA. He died 1 Jan 1877 in Newburyport [MA vr vol 292 pg 244].

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This interesting grave stone is located in the High Street Cemetery in Hampton, New Hampshire, and belongs to ABRAHAM MARSTON LEAVITT. He was the son of Thomas and Mary (Marston) Leavitt, born in Hampton on 6 Mar 1827 [Descendants of Thomas Leavitt, pg 150/155]. 

He moved to Boston, Mass, where he worked as a police officer in the 1860's. In 1868, he became a truant officer for the city [Boston Traveller, 3/31/1868], a position he held until his death in Roxbury on 7 Oct 1898. 

His wife was SARAH J SANBORN, the daughter of William and Hannah (Chase) Sanborn of Seabrook, NH [death rec]. She died in Stoughton, MA on 13 Jan 1910, and was buried in Hampton, NH [MA Death Rec].

They had two sons, William Sanborn Leavitt and Alfred Marston Leavitt, both of whom lived in Boston, and were also buried in the High St Cemetery.

See also:
- Hampton, NH Cemetery page
- Boston Evening Times, 8/28/1860 (pg 4): Abraham appointed officer on 27 Aug.