 Kọ itẹsiwaju fun paragirafi yii - Arakunrin ibeji rẹ, Finlay Calder, tun mu bọọlu fun Scotland o si jẹ olori ẹgbẹ agbabọọlu British Lions to lọ si Australia lọdun 1989 : ó ṣe tán. Awọn arakunrin naa ko ṣere ni ẹgbẹ Scotland kanna; Jim Calder ṣẹgun ikẹhin ti awọn caps rẹ lodi si ni Oṣu Kẹta ọdun 1985 ati Finlay ṣe akọkọ rẹ lodi si ni Oṣu Kini ọdun 1986. Jim gba apapọ 27 caps, pẹlu igbasilẹ iṣẹ rẹ ti o pari bi: Won 12, Lost 13, Drew 2. 