All the info you need to know are in www.border.gov.au...there is a list of acceptable certifying bodies detailed in the website...in Ph usually Notary Public...wala naman kasing agency sa Ph or maybe anywhere in the world na talagang gagawa ng family tree for the sake of just storing family history of anyone..Usually kung meron man, gagawa lang sila ng drawing and supported by birth certificates. Hindi yong parang NSO na rerequest ka lang then meron na nakaillustrate na family tree. Kaya nga ang suggestion ko is make a drawing and support it by birth certs from NSO na matitrace ng CO na may family relationship kayo.