The Alexander Turnbull Libraries war diaries project was another source of information for the Herald's #GallipoliFlashback tweets.
In the past real time tweeting has been used to tell the story of other historical events.
In 2013 The History Press chronicled the doomed sailing of the Titanic posting minute-by-minute tweets as if from on board the ship itself.
They tweeted from the perspective of the captain, crew members, engineers, officers and first, second and third class passengers.
They timed the tweets perfectly, marking the moment the ship struck an iceberg - exactly 100 years to the minute after the real-life collision.
Among the tweets describing the scene was one from the bandmaster: "No questions, I have received an order to play, and play we will."
It was followed by a first class passenger, who lamented: "This is tiresome, but I suppose one has to show willing. Come along darling, out on deck as they say."
The @TitanicRealTime feed was also based on real experiences from survivors.
Just 4000 people followed the account when it kicked off in March but by the time it started to sink, it boasted more than 70,000 followers.
You can follow the Herald's real time Gallipoli landing on Twitter @nzherald.
You can also search via the hashtage #GallipoliFlashback