I'm researching this Brown line in Connecticut and Rhode Island.William J. BROWN Jr. [b. Abt. 1836 CT] married Bridget R. McDONALD on 1 Mar 1861 in Putnam, Windham, CT.[Bridget born May 1842 County Cork, Ireland.]William died in the Civil War and was survived by his wife and their son, Jeremiah Rathbun BROWN, born 16 Mar 1862 in Putnam.Bridget and Jeremiah moved to Providence, RI where she married 2nd Michael MALLOY, a widower with four children.
Michael MALLOY Born: Abt. 1825 Ireland  Married 1st: unknown Married 2nd: Bridget R. (McDonald) Brown  Date of 2nd marriage:31 Mar 1878 Providence, RI  Michael died: 19 June 1882 Providence, RI  Occupation: Laborer  Cause of death: Run over by a tip-cart  Parents: Patrick and Ann MALLOY 
1880 Providence, RI Census Index MALLOY, Michael, 55, b. Ireland MALLOY, Bridget, 40, b. Ireland MALLOY, Nellie, 8, daughter, b. RI MALLOY, Maggie, 6, daughter, b. RI MALLOY, Mary, 5, daughter, b. RI MALLOY, John, 3, son, b. RI BROWN, Jeremiah, 18, stepson, b. CT
Sources: 1. The 1880 Providence, RI Census, p. 350B 2. William J. Brown's Civil War Pension Record 3. Michael Malloy's death record
In 1916 Bridget MALLOY was living at 204 Branch Ave in Providence with someone named Ellen J. MALLOY.Ellen would have been born about 1882.