There is also a possible entry for Donald on IGI:
DONALD MCTAVISH Birth: 28 DEC 1813 Glassary, Argyll, Scotland
Parents: Father: DUNCAN MCTAVISH Mother: CHRISTIAN SINCLAIR
Possible siblings from IGI:
1. MARY MCTAVISH Birth: About 12 FEB 1809 Glassary, Argyll, Scotland
2. CATHARINE MCTAVISH Birth: 05 JUN 1820 Glassary, Argyll, Scotland
3. ANNE MCTAVISH Birth: 21 OCT 1811 Glassary, Argyll, Scotland
And submitted entries for these parents:
DUNCAN MCTAVISH Birth: About 1783 Of Lochlan, Glassary, Argyll, Scotland
Marriages: Spouse: CHRISTIAN SINCLAIR
Marriage: 20 FEB 1808
Monica