Below are entries from the 1810, 1820, 1830 and 1840 censuses for Allen, Barren and Monroe counties. These are all the entries with surnames that are variations of the Hagan surname. Of course Allen and Monroe counties were included in Barren county in 1810. The entries are pretty much self-explanatory for anyone who has read census records for these years. Column 4 is the page number and column 5 is the line number on the given page. The R after Hagan in the 4th 1810 entry certainly must mean "Red" and the B after Hagan in the 7th 1820 entry likewise means "Black". In the 12th 1830 entry the R is the middle initial (in my opinion). 1 1810 Barren 49 22 Hagan Arthur 20001 11001 2 1810 Barren 49 26 Hagan Nancy 10001 10010 3 1810 Barren 49 35 Hagan Jonas 00010 20100 4 1810 Barren 49 36 Hagan R Arthur 20001 12201 5 1810 Barren 49 37 Hagan Wm 00100 10100 6 1810 Barren 52 39 Hagan Sam'l 00010 00011 7 1810 Barren 52 40 Hagan Wm 21010 00110 1 1820 Allen 98 10 Hagan Wm 320111 10010 2 1820 Allen 98 17 Haygan Hugh 101201 30011 3 1820 Allen 100 17 Hagins Campbell 200010 10010 4 1820 Allen 104 9 Ha(o)gan Wm 000010 20100 5 1820 Barren 14 3 Huggins Reuben 200010 00100 6 1820 Barren 16 9 Hagans Sarah 010001 30110 7 1820 Monroe 217 2 Hagan B Arthur 010001 00001 8 1820 Monroe 217 5 Hagan John 000100 10100 9 1820 Monroe 217 46 Hagan Jonas 200010 32010 10 1820 Monroe 217 47 Hagan Arthur 400010 20010 1 1830 Allen 47 9 Hagan Hugh 0000-000001 0011-00101 2 1830 Allen 47 14 Hagan Levi 1000-1 1000-1 3 1830 Allen 48 16 Hagan Jesse 2000-01 0000-1 4 1830 Allen 48 20 Hagan John 3210-101 0000-01 5 1830 Allen 55 10 Hagan Campbell 1120-01 0210-01 6 1830 Allen 72 22 Ha(o)gan William 3100-001 1110-01 7 1830 Barren 128 11 Huggins Reuben 0020-0001 2100-01 8 1830 Barren 129 6 Ha(o)gan William 1000-001 2200-1 9 1830 Barren 131 27 Ha(o)gan James 0100-01 2200-01 10 1830 Monroe 381 14 Hagin John 0200-01 3010-1 11 1830 Monroe 386 16 Hagin Nancy 0100-0 1110-001 12 1830 Monroe 387 6 Hagin Arthur R 0111-001 2010-001 13 1830 Monroe 387 7 Hagin Lyda 1000-0 0300-01 14 1830 Monroe 387 8 Hagin Jonas 1102-001 2212-01 15 1830 Monroe 391 1 Hagin Jeremiah 0000-1 0000-1 16 1830 Monroe 392 24 Hagin Hiram 0100-1 0000-00001 17 1830 Monroe 393 23 Hagin Arthur 0000-00001 0000-00001 1 1840 Allen 46 22 Hagins Levi 2310-0 2010-01 2 1840 Allen 64 3 Hagans Campbell 0012-1020001 0102-001001 3 1840 Allen 74 6 Hagan Arthur 0001-0001 0211-1001 4 1840 Barren 161 5 Hagan William B 3000-1 0000-1 5 1840 Barren 166 24 Hagga(u)ns Rubin 0221-1001 1131-01 6 1840 Monroe 242 10 Hagan John 0111-01 3120-01 7 1840 Monroe 244 3 Hagan Liddy 1110-0 0102-01 8 1840 Monroe 244 7 Hagan Jane 0000-1 0000-000001 9 1840 Monroe 249 20 Hagan Francis 0000-1 2000-1 10 1840 Monroe 250 4 Hagan Nancy 0201-0 0011-1001 11 1840 Monroe 254 14 Hagan Rob't 1200-1 1000-1 12 1840 Monroe 255 8 Hagan G. W. 1001-0 0000-1 13 1840 Monroe 260 16 Hagan Jonas 0021-0001 0022-201 14 1840 Monroe 261 16 Hagan Mary 0002-01 1221-01