IIRC there were many voting *ahem* irregularities during the reign of King Joey, but I don't recall hearing anything big about the big vote. That was all Joey's magic. Of course, promising poor fisherman a new life with a big Canadian cheque (the Baby Bonus) to come could make a lot of men believers very quickly.
Well there are conspiracy theories abound about whether or not the confederates stuffed the ballot boxes in 1948 .... but I'll leave that alone because quite frankly, there is no proof unless someone comes forth and shows us all undeniable proof.
But what I refer to, is how Confederation got on the ballot in the first place. This may be long winded, so I apologize .... I'll try to give a brief overview of the history.
Commission of Government took over in 1934, replacing parliamentary democracy. Newfoundland, burdened with having to pay off its share of the war debt, went into financial ruin. And to top it of, the entire world was dealing with the Great Depression.
The Commission was three Newfoundland appointees and three British appointees plus the Governor. Commission of government, no doubt, served Newfoundland well. Medical services improved, education improved, and they established the Newfoundland Fisheries Board. But for all these benefits the fishing industry struggled because of problems with export markets.
But the years leading up to the war, public opinion was strong against Commission of Government. When WWII broke out, Newfoundland started to prosper again. Its strategic location had alot of countries wanting to set up bases here. . the Americans pumped in over 100 million in construction costs, the Canadians set up bases for 60 million or more .... this enables Newfoundland to erase its 4.8 million budget deficit, and have surpluses ever year from 1940 to 1948. All the while we made gave Britain 12 million in interest free loans and made vasts improvements to the Newfoundland education, health, housing and government.
Newfoundland was prospering, and Britain knew that it was only a matter of time for people to want their independence back. They feared that NL would slip back into financial ruin and the cost of maintaining a presence in NL was becoming unaffordable to Britain. So Britain developed a plan where they would request Canada to let NL join. (Nevermind that NL was present in 1867 in Charlottetown and wanted to join then, but were denied ... which was why many did not want to join Canada)
But there was a little glitch. NLers, had stronger ties the the US. They were our biggest trading partner, we had more in common with east coast Americans than any Canadian province. The Americans had a strong presence in NL .... Canada feared being bookended with Alaska on one coast and NL on the other, and Britain and the US did not exactly see eye to eye ....
So before the big vote, a National Convention was set up, to set the terms of the referendum. There were 2 choices. Responsible Government (total independence again) and Commission of Government (which Britain did not want at all costs). Read that again. The National Convention (comprised of 45 elected NLers) DID NOT want Confederation on the ballot.
Then Joey Smallwood hatched his plan ... and whether he knew the outcome I'll leave you to decide .... and some would say it was an ingenious plan. He approached the National Convention along with Peter Cashin (a merchant) I believe, and asked the Convention to place two more options on the ballot. Confederation and an economic union with the United States. The Convention agreed because Smallwood and Cashin supported each other, and because the great percentage of the population WANTED to join the US.
Then Britain stepped in ... they urged NL to join Canada, told them that Britain would not let NL join in any fashion a non-Commonwealth nation and removed the US option AND then forced NL to keep the Canadian option even though the Convention did not want it without the US option.
The rest is history. The first referendum there was no 50% clear winner AND more NLers voted against Confederation (44.6 for independence, 41.1 for canada, almost 15% were so disgusted they actually choose the retain Commission of Government). The second ballot then was just 2 choices and we picked Canada.
But we democratically voted down the Canada option in the National Convention and it was forced upon us ... which is why conspiracy theories abound about that second referendum.