They also brought gifts - home-made banana bread and a solid drenching of rain to the drought-stricken region.
In keeping with the royal baby craze, Entertainment Tonight has unearthed an old interview from Hello! magazine in which the Duchess of Sussex revealed she already has a present in store for her unborn child-and it may hint at the baby's name.
The young royal said he was touched by the strength of the local Dubbo community.
They had earlier visited a farm hit by the drought and Harry recalled his own stay on an Australian farm 15 years ago, where he said he was chased by countless cattle and perfected the Aussie salute of swatting flies.
The pregnant royal - who announced on Monday that she and Prince Harry were expecting their first baby next year - cooed over Higgins' nine-week-old daughter, Luna, who was nestled safely in her mum's arms.
Hello! magazine's royal editor Emily Nash said the banana bread was "rustled up last night in the kitchen at Admiralty House" in Sydney.More news: Brazil's Miranda silences Argentina with last-gasp victor
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Prince Harry said while rural Australians had a lot to be proud of, "I know that life has not been easy", mentioning the devastating drought. It didn't stop them waving their union flags.
He spoke of high suicide rates and the need for a strong community to help others who are doing it tough.
Amid resounding applause Harry that when he personally asked for help it was "one of the best decisions" that he ever made.
Daniella Clews, 12, and Sovanah Doherty, 11 from Dubbo West School scored hugs from the couple.
The Duke and Duchess of Sussex landed in Dubbo for the second day of their tour in Australia.
They will visit Melbourne on Thursday before returning to Sydney.
Mrs Carroll said Meghan admitted to being "a bit tired", but hoped to complete all 76 engagements during their 16-day tour.