Julie In addition to my other post, the cemetery record for Samuel Edward Jennings is at South Brisbane cemetery [ Dutton Park] buried 13 Jun 1890 - port. 5A grave no. 110. You can check this yourself on the Brisbane City Council, grave search site.
There is a possible birth for Amy under the NSW bdm website as - 1857 - Catchpole - unnamed female f.Robert - m. Charlotte - reg. at Brisbane Moreton Bay ref - 5398/1857. [ Prior to 1856, Queensland was part of NSW]