Twin directories of unroff:

[DIR]  ftp://ftp.eenet.ee/pub/FreeBSD/distfiles/unroff/
[DIR]  ftp://ftp.42.org/pub/OLD/u/unroff/
[DIR]  ftp://ftp.internat.freebsd.org/pub/FreeBSD/distfiles/unroff/
[DIR]  ftp://ftp.internat.freebsd.org/pub/FreeBSD/ports/textproc/unroff/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/packages/distfiles/unroff/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/packages/current-src/pkgsrc/textproc/unroff/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/FreeBSD/ports/distfiles/unroff/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/FreeBSD/development/FreeBSD-CVS/ports/textproc/unroff/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/misc/snj/pkgstat/20050112.1442/textproc/unroff/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/misc/grant/pkgstat/20040711.1811/textproc/unroff/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/misc/grant/pkgstat/20040716.0710/textproc/unroff/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/misc/dmcmahill/pkgstat/2004-04-25-alpha/textproc/unroff/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/misc/grant/pkgstat/20040121/textproc/unroff/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/misc/grant/pkgstat/20040131/textproc/unroff/
[DIR]  ftp://ftp.swin.edu.au/freebsd/ports/distfiles/unroff/
[DIR]  ftp://ftp.swin.edu.au/freebsd/development/FreeBSD-CVS/ports/textproc/unroff/
[DIR]  ftp://ftp.mgts.by/pub/FreeBSD/ports/distfiles/unroff/
[DIR]  ftp://ftp.sk.freebsd.org/pub/FreeBSD/development/FreeBSD-CVS/ports/textproc/unroff/
[DIR]  ftp://ftp.ps.pl/dsk0/ftp.freebsd.org/FreeBSD/ports/distfiles/unroff/
[DIR]  ftp://ftp.free.fr/.mirrors1/ftp.netbsd.org/packages/distfiles/unroff/
[DIR]  ftp://ftp.free.fr/.mirrors1/ftp.netbsd.org/packages/current-src/pkgsrc/textproc/unroff/
[DIR]  ftp://ftp.free.fr/.mirrors1/ftp.freebsd.org/ports/distfiles/unroff/
[DIR]  ftp://ftp.free.fr/.mirrors1/ftp.freebsd.org/development/FreeBSD-CVS/ports/textproc/unroff/
[DIR]  ftp://ftp.dc.aleron.net/pub/FreeBSD/development/FreeBSD-CVS/ports/textproc/unroff/
[DIR]  ftp://ftp.cse.buffalo.edu/mirror/BSD/FreeBSD/ports/distfiles/unroff/
[DIR]  ftp://ftp.cse.buffalo.edu/mirror/BSD/FreeBSD/development/FreeBSD-CVS/ports/textproc/unroff/
[DIR]  ftp://ftp13.freebsd.org/pub/FreeBSD/ports/distfiles/unroff/
[DIR]  ftp://ftp13.freebsd.org/pub/FreeBSD/development/FreeBSD-CVS/ports/textproc/unroff/
[DIR]  ftp://ftp13.freebsd.org/cvsup/ncvs/CVSROOT-ports/textproc/unroff/
[DIR]  ftp://ftp13.freebsd.org/cvsup/ncvs/ports/textproc/unroff/
[DIR]  ftp://ftp5.uk.freebsd.org/pub/FreeBSD/ports/distfiles/unroff/
[DIR]  ftp://ftp2.tw.freebsd.org/FreeBSD/development/FreeBSD-CVS/ports/textproc/unroff/
[DIR]  ftp://ftp.nz.freebsd.org/pub/FreeBSD/ports/distfiles/unroff/
[DIR]  ftp://ftp.nz.freebsd.org/pub/FreeBSD/development/FreeBSD-CVS/ports/textproc/unroff/
[DIR]  ftp://193.219.61.67/pub/FreeBSD/ports/distfiles/unroff/
[DIR]  ftp://ftp.euro.net/pub/mirrors/FreeBSD/ports/distfiles/unroff/
[DIR]  ftp://ftp.euro.net/pub/mirrors/FreeBSD/development/FreeBSD-CVS/ports/textproc/unroff/
[DIR]  ftp://ftp.int.ru/.1/FreeBSD/distfiles/unroff/
[DIR]  ftp://ftp.int.ru/.1/FreeBSD/development/FreeBSD-CVS/ports/textproc/unroff/
[DIR]  ftp://ftp.kr.freebsd.org/pub/FreeBSD/ports/distfiles/unroff/
[DIR]  ftp://ftp.kr.freebsd.org/pub/FreeBSD/development/FreeBSD-CVS/ports/textproc/unroff/
[DIR]  ftp://ftp.demon.nl/disk2/freebsd/ports/distfiles/unroff/
[DIR]  ftp://ftp.demon.nl/disk2/freebsd/development/FreeBSD-CVS/ports/textproc/unroff/
[DIR]  ftp://ftp2.sk.freebsd.org/FreeBSD/ports/distfiles/unroff/
[DIR]  ftp://ftp2.sk.freebsd.org/FreeBSD/development/FreeBSD-CVS/ports/textproc/unroff/
[DIR]  ftp://ftp.lug.udel.edu/pub/netbsd/misc/dmcmahill/pkgstat/2004-04-25-alpha/textproc/unroff/
[DIR]  ftp://ftp.lug.udel.edu/pub/netbsd/misc/grant/pkgstat/20040121/textproc/unroff/
[DIR]  ftp://ftp.lug.udel.edu/pub/netbsd/misc/grant/pkgstat/20040131/textproc/unroff/
[DIR]  ftp://ftp.lug.udel.edu/pub/freebsd/ports/distfiles/unroff/
[DIR]  ftp://ftp.lug.udel.edu/pub/freebsd/development/FreeBSD-CVS/ports/textproc/unroff/