Robert was born in Scotland in 1828.
He came to America in 1842 with his parents. 
He was one of the early settlers in the Scottish Settlement in Argyle in Illinois.
He died in 1906 and is buried with his wife in the Scottish Cemetery in Caledonia, Illinois.
Rockford Republic, Wednesday, September 5, 1906 BOONE COUNTY PIONEER DEAD Robert Montgomery, a Resident of Boone County for Three Score Years, Buried in Caledonia. Robert Montgomery, a resident of the Scotch settlement for over three score years, passed away at his home in West Lane, near Caledonia, at 2 o'clock Sunday morning. Death was due to diseases incident to old age. Mr. Montgomery has been failing for some time past. Deceased was up and around until last Wednesday morning, the decline was gradual. Robert Montgomery was born in Cambellton, Scotland, March 17, 1828, and came to America in 1842, locating in the Scotch settlement which ever after continued as his home. His marriage to Miss Margaret Breckenridge, who passed away some years ago, was celebrated in 1859. Deceased was one of the pioneer residents of the Scotch settlement, and enjoyed the respect and esteem of persons residing in that section. He was a sturdy Scotch citizen and for years followed farming in that vicinity. Mr. Montgomery had for some time made his home with his son-in-law David Picken.
Deceased is survived by five daughters and one son. Mmes. David Picken of Caledonia, Herbert Calvert, Stillman Valley, Robt. Stewart, Redwood Falls, Minn., and Frank Priest, Buffalo Hart, Ill. Rev. Edward Montgomery of Maroa is the only son. The funeral was held from the home of David Picken in Caledonia yesterday afternoon at 2 o'clock. Rev. Pearson of Argyle officiated at the ceremony. - Belvidere Republican.
"United States Census, 1860", database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MXHP-7YM : 13 December 2017), Robert Montgomery, 1860.
"United States Census, 1870," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:M6W1-CL4 : 12 April 2016), R Montgomery, Illinois, United States; citing p. 5, family 38, NARA microfilm publication M593 (Washington D.C.: National Archives and Records Administration, n.d.); FHL microfilm 545,793.
"United States Census, 1880," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MX2S-PVC : 14 August 2017), Robert Montgomery, Harlem, Winnebago, Illinois, United States; citing enumeration district ED 220, sheet 60B, NARA microfilm publication T9 (Washington D.C.: National Archives and Records Administration, n.d.), roll 0261; FHL microfilm 1,254,261.
"United States Census, 1900," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MSCC-H3H : accessed 10 May 2018), Robert Montgomery, Rockford Township Rockford city Ward 1, Winnebago, Illinois, United States; citing enumeration district (ED) 131, sheet 4A, family 81, NARA microfilm publication T623 (Washington, D.C.: N
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