The information are extracted from release pages before po4a-gettextize.
--- /dev/null
+PO4A-HEADER: mode=before; position=^\.TH
+.\"
+.\" Japanese Version Copyright (c) 2003 Yuichi SATO
+.\" all rights reserved.
+.\" Translated Thu May 1 16:13:34 JST 2003
+.\" by Yuichi SATO <ysato444@yahoo.co.jp>
+.\"
--- /dev/null
+PO4A-HEADER: mode=before; position=^\.TH
+.\"
+.\" Japanese Version Copyright (c) 2003 Yuichi SATO
+.\" all rights reserved.
+.\" Translated Thu May 1 17:36:08 JST 2003
+.\" by Yuichi SATO <ysato444@yahoo.co.jp>
+.\"
--- /dev/null
+PO4A-HEADER: mode=before; position=^\.TH
+.\"
+.\" Japanese Version Copyright (c) 2001-2004 Yuichi SATO
+.\" all right reserved.
+.\" Translated Sat Dec 1 06:32:08 JST 2001
+.\" by Yuichi SATO <ysato@h4.dion.ne.jp>
+.\" Updated & Modified Sun Feb 8 14:05:26 JST 2004
+.\" by Yuichi SATO <ysato444@yahoo.co.jp>
+.\"
--- /dev/null
+PO4A-HEADER: mode=before; position=^\.TH
+.\"
+.\" Japanese Version Copyright (c) 2001 Yuichi SATO
+.\" all rights reserved.
+.\" Translated Tue May 15 20:08:04 JST 2001
+.\" by Yuichi SATO <ysato@h4.dion.ne.jp>
+.\"
--- /dev/null
+PO4A-HEADER: mode=before; position=^\.TH
+.\"
+.\" Japanese Version Copyright (c) 2001 Yuichi SATO
+.\" all rights reserved.
+.\" Translated Tue May 15 20:09:48 JST 2001
+.\" by Yuichi SATO <ysato@h4.dion.ne.jp>
+.\"
--- /dev/null
+PO4A-HEADER: mode=before; position=^\.TH
+.\"
+.\" Japanese Version Copyright (c) 2001, 2004 Yuichi SATO
+.\" all right reserved.
+.\" Translated Sun Jul 29 01:03:37 JST 2001
+.\" by Yuichi SATO <ysato@h4.dion.ne.jp>
+.\" Updated & Modified Wed Sep 12 06:22:55 JST 2001 by Yuichi SATO
+.\" Updated on Wed May 28 01:51:45 JST 2003 by
+.\" System Design and Research Institute Co., Ltd.
+.\" Updated & Modified Sat Feb 21 23:28:25 JST 2004
+.\" by Yuichi SATO <ysato444@yahoo.co.jp>
+.\"