Robyn, Have obtained birth cert for Albert Horton b. 1873 near Maryborough Q. and info from it is his parents,William Horton b.1844 and Elizabeth Ann Royston b.1848 were both born in Manchester Lancs. and were married 25th Dec 1865 in Manchester. The cert also said there was 2 other children living in 1873 Charles 8 and Rosie 2. From what you found on the children it appears that William and Elizabeth had 3 other children in Qld. before Albert in 1873 so they must have arrived in Oz between 1865/1868. Would you have any idea where we could find passenger lists of ships arriving over those years ?. Hope I am not being a nuisance asking you this.