Looking for information on Spence/ Gamble family

I am after information on the ancestors or living relatives of my grandparents who migrated to Australia from Dromore in the 1920's. 

My Grandmother Sarah Jane Gamble was born in 1905 and had up to 8 brothers and sisters. Her parents names are Thomas Gamble and mother  s Jane Gamble nee Gibson. They were not catholic. I believe they both lived into their 90's. There other children were Agnes, David, Lizzy, Robert  Henry, Georgina, Maud and HIlda. 

Georgina had 2 children Eddie and Tommie Hayes

My Grandfather James Ernest Spence was born in 1900 and his parents are James Spence and Jane Spence, nee Jardine.