"Lundboka" states that 'Ole Omundsen Rusdal' had a daughter named 'Siri Olsdatter' that was baptized 13-10-1782 (p. 679). According to that source she died as an infant ((p. 679)), presumeable because the author found no death/burial record.
The same source states that an 'Ole Pedersen Rusdal' had a daughter named 'Siri Olsdatter' that was also baptized 13-10-1782, and later got married to 'Tor Omundsen N. Skårdal' on 08-02-1798 (p. 677).
The church records, however, report the baptism of only one 'Siri Olsdatter' at or around this time, and she was a daughter of "Ole Rusdal", while an "Ole Omundsen Rusdal" was listed as one of the witnesses at her baptism.
Lund sokneprestkontor, SAST/A-101809: Ministerialbok nr. A 3, 1761-1801, s. 100-101
Brukslenke for sidevisning: https://www.digitalarkivet.no/kb10511104150054
I suspect that there was only one 'Siri Olsdatter' born in 1782, and her father was 'Ole Pedersen Rusdal'; and that 'Ole Omundsen Rusdal' did not have a child that year; he had one baptized 23-06-1780 ('Omund') and another 29-12-1783 (also 'Omund'), so it would have been a tight squeeze to fit one in on 13-10-1782 (although not impossible).
Speaking of which, it seems that 'Ole Omundsen Rusdal' had at least 5 sons named 'Omund':
**********
Omund I, born, died 26-04-1772, 14 days old
Lund sokneprestkontor, SAST/A-101809: Ministerialbok nr. A 3, 1761-1801, s. 58-59
Brukslenke for sidevisning: https://www.digitalarkivet.no/kb10511104150033
Lund sokneprestkontor, SAST/A-101809: Ministerialbok nr. A 3, 1761-1801, s. 260-261
Brukslenke for sidevisning: https://www.digitalarkivet.no/kb10511104150099
**********
Omund II, born 04-10-1777, died before (burial of) 31-12-1777, 14 weeks old [he's not at Geni]
Lund sokneprestkontor, SAST/A-101809: Ministerialbok nr. A 3, 1761-1801, s. 80-81
Brukslenke for sidevisning: https://www.digitalarkivet.no/kb10511104150044
Lund sokneprestkontor, SAST/A-101809: Ministerialbok nr. A 3, 1761-1801, s. 268-269
Brukslenke for sidevisning: https://www.digitalarkivet.no/kb10511104150103
**********
Omund III, born 02-04-1779, died before (burial of) 14-06-1779, 11 weeks old
Lund sokneprestkontor, SAST/A-101809: Ministerialbok nr. A 3, 1761-1801, s. 86-87
Brukslenke for sidevisning: https://www.digitalarkivet.no/kb10511104150047
Lund sokneprestkontor, SAST/A-101809: Ministerialbok nr. A 3, 1761-1801, s. 268-269
Brukslenke for sidevisning: https://www.digitalarkivet.no/kb10511104150103
**********
Omund IV, born before (baptism of) 29-12-1783,, died 29-04-1863
Lund sokneprestkontor, SAST/A-101809: Ministerialbok nr. A 3, 1761-1801, s. 104-105
Brukslenke for sidevisning: https://www.digitalarkivet.no/kb10511104150056
Lund sokneprestkontor, SAST/A-101809: Ministerialbok nr. A 8, 1853-1877, s. 210
Brukslenke for sidevisning: https://www.digitalarkivet.no/kb20051212050754
**********
Omund V, born 29-07-1790, died 27-12-1869
Lund sokneprestkontor, SAST/A-101809: Ministerialbok nr. A 3, 1761-1801, s. 128-129
Brukslenke for sidevisning: https://www.digitalarkivet.no/kb10511104150068
Lund sokneprestkontor, SAST/A-101809: Ministerialbok nr. A 8, 1853-1877, s. 220
Brukslenke for sidevisning: https://www.digitalarkivet.no/kb20051212050768