May I please suggest that all the births/baptisms listed below are full siblings .... just speculating
18 Jan
1832 Joseph, son of Henry and Eshter BROWNE, registered Launceston
https://stors.tas.gov.au/RGD32-1-1-p242j2k 24 Dec
1833 John, son of Henry and Eshter BROWNE, registered Launceston
https://stors.tas.gov.au/RGD32-1-2-p307j2k 9 April
1836 George, son of Henry and Esther BROWN, registered Launceston
https://stors.tas.gov.au/RGD32-1-2-p378j2k 16 July
1838 Henry son of Henry and Hester BROWN registered Evandale
https://stors.tas.gov.au/RGD32-1-3-p488j2k 12 June
1840 Mary Ann, daughter of Henry BROWN and Esther SCOTT
https://familysearch.org/ark:/61903/1:1:XT61-BZS and
https://stors.tas.gov.au/RGD33-1-23-p650j2k 15 Oct
1841 Jessie,daughter of Henry BROWN and Esther SCOTT,
https://familysearch.org/ark:/61903/1:1:XT61-B9T and
https://stors.tas.gov.au/RGD33-1-23-p679j2k 14 April
1843 Walter, son of Henry BROWN and Esther SCOTT
https://stors.tas.gov.au/RGD33-1-23-p723j2k 15 Oct
1846 Adam, son of Henry and Esther BROWN, registered Evandale
https://stors.tas.gov.au/RGD32-1-3-p623j2k 29 April
1849 James, son of Henry BROWN and Esther SCOTT, registered Morven
https://stors.tas.gov.au/RGD33-1-27-p532j2k 11 Sept
1850 Richard, son of Henry BROWN and Esther SCOTT, registered Morven
https://stors.tas.gov.au/RGD33-1-27-p540j2k 14 Sept
1852, Elizabeth Jane, daughter of Henry BROWN and Esther BROWN, registered Evandale
https://stors.tas.gov.au/RGD32-1-3-p685j2k 17 Sept
1852 Isabella, daughter of Henry and Esther BROWN
https://familysearch.org/ark:/61903/1:1:XTXX-Y732 June
1854 Eliza, daughter of Henry BROWN and Esther SCOTT registered Morven
https://stors.tas.gov.au/RGD33-1-32p325j2k 24 May
1856, un-named child of Henry BROWN and Esther SCOTT
https://familysearch.org/ark:/61903/1:1:XTXF-4D7 NOTING 24 May would be Queen Victoria’s birthday, celebrated throughout the Empire, often by naming babies born/baptised on that day either Victor or Albert for males or Victoria for females)
Cheers, JM