I wasnt the original poster but I went to school at Igam too, infact I grew up there and started Grade 1 in Igam Community school. My mum was a teacher there as well and one of the names you mentioned could have been her but spelt incorrectly.
Childhood at Igam are times I will never forget, including swimming in the creek and the pool till our eyes were red, and gardening for the community school.
I left in the middle of Grade 5 for Port Moresby coz dad tranfered. I have left an email address should you wish to contact me.