If you wish, let me know the most promising of the clues to follow up as well. I have some details of George Smiths from Newcastle during WW1 taken from Trove newspapers site which give brief details of ones returning from the war injured or completed service of killed in action. Just to eliminate them or the clue just might be the trigger to link them.

Remember that if George's friendship was closest to Amos rather than Frank or Benjamin, in 1913 Electoral rolls (and then until the end of his life), Amos and Jemima had moved to North Balmain, a Sydney Suburb so Georges records might be centred in Sydney, rather than Newcastle.

There is an unopened WW1 service record for a George Smith whose next of kin lived in Balmain, age is close, so a slim chance that could be him. However he enlisted in a small town South West of Sydney which doesn't seem like it would be him except that it did have a history of Gold mining, although this was in decline by 1913.

Talk about a needle in a haystack

Sid Toomey

Regarding the Cousin, George Smith and his voyage to Australia, there is a record of a George Smith, aged 38 and a Miner by occupation embarking in Liverpool on board the ship "Ayrshire" to depart on 30th September 1912. He travelled 3rd Class.
(Record in on Ancestry under UK and Ireland, Outward Passenger lists 1890-1960. He was to land in Sydney NSW.

There is another record of him arriving in Sydney 30th November 1912. (NSW Australia Unassisted Immigrant Passenger lists 1826-1922 on Ancestry)

Ships Master was W.J.Page. The vessel was 7751 Tons Gross.
Its end came in 1926 off SW India when it was abandoned after catching fire.

Sid Toomey

Amos Smith is listed on the passenger list for the Orient Line's R.M.S. "Oruba" 3351 Tons, Captained by John Linklater, travelling from the Port of London, arriving in Sydney 28th September 1901.
He is listed as a 3rd class passenger. No other details recorded against his name.
Trivia about the voyage and ship.
Three people died during the trip. Two from natural causes with the third being a boy named John Clark,ten and a half years old was killed when he fell down one of the coal bunker chutes on 25th August.
After the ship left Fremantle West Australia for the final run to Eastern Australian ports, it encountered a South West gale off Cape Leuwin. The Sydney Morning Herald newspaper reported "it made things lively for a while, seas breaking on the high decks with exceptional fury , causing the 6000 * ton ship to labour heavily". Another newspaper reported the ship took on huge amounts of water.
* This contradicts the 3351 tons shown on the passenger list.From a history of the ship, it appears the larger figure was the gross tonnage and the lighter one was the net tonnage.
In late 1914,during the early part of WW1, Winston Churchill, First Lord of the Admiralty came up with the idea of disguising merchant ships to look like capital warships. One of those purchased (reportedly 14 ships) was "Oruba". With the addition of wooden profiles added it was made to resemble the Super Dreadnought Battleship HMS "Orion". However the Germans weren't fooled, probably because the construction activity was reported in the New York Times.
The "Oruba" was scuttled in 1916 at Lemnos Greece to act as a breakwater.
(Source for this information was Benjidog Ship Histories, also confirmed on other websites.

Sid Toomey.

P.S. Brief details of the Smith Brothers emigrating to Australia are also recorded on the "Emigrants list" under the resources tab of this site.

Regarding details of the three Smith Brothers Emmigating to Australia see passenger list details below (obtained from Ancestry) which i believe are the Brothers.

(a) The Orient liner R.M.S. "Omrah", Captain J.F. Ruthven, 8291 Tons with 225 * Statute adults sailed from London on 13th October 1899 on a voyage of 56 days via Plymouth, Colombo,Albany,Adelaide, Melbourne and finally Sydney . Other Ports of call were also listed.
Ben Smith age 23 described as a labourer.
Frank Smith age 25 also a labourer.
Some trivia concerning the voyage and passenger list is that on board were 180 NavalRatings returning to Garden Island, Sydney.
Another passenger was a Mr Scott who owned a very successful Drapery store in Hunter Street Newcastle. ( Did he get talking to the Smith brothers and convince them to make their fortunes in Newcastle ??)
on 27th November the ship berthed in Sydney at the Companies wharf on the East Side of Circular Quay.
* The Sydney Morning Herald newspaper reported that there were between "900 & 1,000 souls on board during most of the voyage".
The "Omrah" was the largest Orient line passenger vessel built in the 19th Century. Built in Glasgow, she had her maiden voyage during February 1899.

Sid Toomey

Details of Amos' voyage and possibly George Smith's as well to follow.

Regarding Alfred and Annie Smith, I suspect they died young. If you search the Parish records on this site there are a couple of Burial entries which I think could be them.
Alfred Smith, aged two buried 13th April 1892 in the Parish of Christchurch while living at Mile End.
Annie Smith, aged 14 buried 23rd March 1899 in the Parish of Christchurch while living at Mile End.

The images of the original church registers are also available on Ancestry.

Sid Toomey

The link you've used is to the page, not the image.

Here's your link

https://imgur.com/gallery/ByjHnC2

It should be

https://i.imgur.com/MSVtWKC.jpeg

Here's your image