Looking for Amelia Boland

I am looking for Amelia BOLAND. She was born c1819 Epping or Essex England,married in Calcutta India in 1847 to James Henry HARPER,died in 1858 Ballarat,Victoria,Australia.She and James had Henry John born 1847 Calcutta India;Mary Ann born 1849 Sydney Australia;Charles born 1850 Victoria,Robert born 1852 Ashby;James born 1856 Ballarat; Henry born 1858 Ballarat.Any help with this lady would be appreciated...Regards jhc