The trio produced match-shaping performances with bat (Mooney and Jonassen) and ball (Kimmince and Jonassen) as Australia claimed a key four-wicket victory in the second one-day international of the women's Ashes series in Leicester.
Australia's deep batting line-up, which saw Mooney and Jonassen combine for an unbeaten seventh wicket stand, was again the difference after Australia's bowling managed to rein the home side.
If England felt Delissa Kimmince was a bowler to target, they probably have different ideas after her five-wicket haul led Australia victory.
Far from a certainty to play the ODIs, player of the match Kimmince decimated the England lower-order on Thursday to finish with figures of 5-26 after Tammy Beaumont's century threatened to leave an imposing chase at Grace Road.
Bowling in tandem with Megan Schutt (1-30), Kimmince had a feeling she would be targeted and made England pay for it, snaring a brace of wickets in consecutive overs to bring the innings to a premature end at 217 all out.
"I'm sure when I look back, it'll be a memory that I won't forget," Kimmince said.
"I think sometimes teams think I'm a bowler they can target, having the pace off a little bit more.
"I know for me it means I have to be right on my lengths where I want to bowl, otherwise it seems to go over the boundary.
"So it's nice when I can get it right, and luckily I was able to.
Despite Kimmince's heroics, Australia were far from certain of victory with 60 runs required and four wickets remaining when Ellyse Perry, after a classy 62, chased a wide long-hop from Anya Shrubsole (3-47) and edged behind.
But Beth Mooney (43*) and Jess Jonassen (31*) showed immense composure to put on 60 runs to take Australia home with 4.4 overs to spare.
The only downside for Australia was the failure of many of their top order fire once more.
Chasing a below-par total once more, they stumbled initially with Alyssa Healy (9), Nicole Bolton (1) and Meg Lanning (18) failing to support Perry.
Earlier, Beaumont also received little help in her run-a-ball 114, the first English ODI ton in an Ashes format, a knock which included an array of eye-catching sweeps and cuts before a reverse pull off Jonassen (2-42) saw her hit the ball onto her stumps.
Beaumont lamented the failure of her and teammates to take advantage of a good position from which they lost the final five wickets for 30 runs.
"I should have been there at the end," Beaumont said.
"We kept losing wickets at key times ... didn't have that really big partnership to push us up towards 250."
After a second victory, Australia now have four points from the series, with another ODI to be played in Canterbury on Sunday, before the Test series worth four points and three Twenty20s worth two points apiece.