About me

Jeff Madsen’s great grandfather Martin Madsen, was born in Denmark and arrived in Newcastle, NSW in May 1877 as a crew member of the barque Avona.

On his mother’s side he is researching his great, great, great grandfather Thomas Griffiths who was sailing schooners out of Hobart between 1839 and 1850 before being lost at sea, somewhere in the Pacific Ocean sailing to San Francisco.

He spent 18 years preparing maps and building databases for the NSW Office of Water and was involved in a family company selling GIS (Geographic Information Systems) software, as well as providing consulting and training services.

Jeff also has an interest in digitising records and images due to the large photographic collection left by his wife’s grandfather who was a professional photographer with a studio at Ashfield. He left a legacy of glass negatives, photo albums, celluloid negatives, diaries and 16mm movies. This collection is now being digitised. He is currently Managing the digitisation process of the manuscript collection for the Society of Australian Genealogists.

He has lived at Gymea Bay for the last 50 years with his wife Roberta. He is a member of Botany Bay Family History Society, Society of Australian Genealogists, Newcastle Family History Society, Sussex Family History Group and the Royal Australian Historical Society.

Many are the changes in technology in that time.


  1. Hi Jeff, I'm Dave Benson, president of the Myall Coast Historical Society. My main interest over the last decade has been the AA Company. I have discovered the site of No. Farm near Karuah and am in process of nominating the site as a State & Local Heritage site. Our society would love to hear you speak about maps at some time. Is this possible?. We haven't much cash, but could put you up overnight.
    Cheers Dave

  2. Dave,
    Apologies for the delay in responding to your message. Yes, I am happy to present a talk to you and your members. I will send an email to the society's email with contact details.

    Jeff Madsen