Her double hat-trick, however, was not a record. Portia Woodman scored eight for New Zealand against Hong Kong in 2017.
Australia were merciless with seven first-half tries against Samoa, and went on to record the biggest margin of victory in tournament history. Desiree Miller scored a hat-trick of tries, and 18-year-old Caitlyn Halse and replacement Adiana Talakai each dotted down twice in a one-sided match at the Salford Community Stadium.
Scotland beat Wales 38-8 in the opening Pool B game, the second clash of the doubleheader at the Manchester venue, after scoring a first try after 35 seconds through Francesca McGhie, who went on to complete a hat-trick as they made a strong statement with their largest win over the Welsh.
Wales briefly held the lead when Alex Callender scored to put them 8-7 up, but after that Scotland took charge and outscored their opponents six tries to one.
It does not get any easier for Samoa, competing at the tournament for the first time since 2014 and looking out of their depth. They meet hosts, and tournament favourites, England in Northampton next week.
England opened proceedings at the six-week tournament by crushing the United States 69-7 on Saturday.
Coach John Mitchell warned there was much more to come from his top-ranked English team.
England’s women lived up to their top billing in an 11-try performance, scoring seven of them after the break in front of a record crowd at Sunderland’s Stadium of Light.
They went over for their first try inside the opening 10 minutes and were comfortably 28-7 ahead at the break, but Mitchell said he asked for more.
"We challenged them around lifting the intensity in the second half, and I thought we lifted it well," he told reporters.
Their forward play was powerful, and their backs showed plenty of pace and skill.
"There is a common saying in rugby that a ‘forward decides who’s going to win the match, and the backs decide by how much,’ and I think the forwards definitely took that approach today in their stride," said winger Abby Dowd, who scored one of the 11 tries.
"The key to a successful team is a platform, and the forwards provided us with that."
Ominously, former All Blacks coach Mitchell warned: "There is so much growth to come. We will get better. The tournament will get harder, but we have so much left in us."
The margin of victory, plus the standard of play, will have thrilled the 42,723-strong crowd, which surpassed the previous record of 42,579 at the last World Cup final in Auckland, where England last lost a game.
"The girls got to experience a brilliant home crowd," said Mitchell.
"It’s a really good start, and it is just the start," she said.
In the final game of the weekend, France beat Italy 24-0.
