He will retire at the end of the school term.
In his time in Deni, Mr Humphries has taught a lot of classes, many students and had plenty of highlights.
But he said he has been particularly pleased to watch the growth of his main teaching subject - one which he says is “incredibly important” to the region.
“I started here (at Deniliquin High School) in 1988, so it’s been 37 years,” he said.
“I’ve taught agriculture, which is definitely very popular and has built over time massively.”
Mr Humphries said a particular development he was proud of was the quality and size of the school farm, which has grown substantially during his time at the school.
“We had time to develop the school farm with the support of the school, community and Parents & Citizens committee,” he said.
He has also taken pride in seeing kids grow in learning situations in the real-world.
And seeing Deniliquin High School alumni go and do great things since leaving school has been special, he said.
“I’ve particularly enjoyed working with kids on the farm or on excursions outside the classroom.
“There are, and have been, really great kids here (at Deniliquin High School) who sought out the plenty of opportunities we’ve had here, and get the most out of them as they could.
“I’m really proud of where the kids have gone with what they achieved with their education after school.”
Mr Humphries credits part of his longevity in teaching at Deniliquin to the support he received across his career.
“I’ve been very fortunate to have had great colleagues that I’ve worked with, and wonderful support from parts of the community.”
With a career spanning so long at one school, Mr Humphries said it’s been quite special to teach multiple generations of local families.
He also expressed joy at making genuine connections with some of his students over the years.
“I have taught so many double generations.
“I’ve taught for so long, I’ve taught the children of my former students.
“It’s always good to see them around town and say hello.”
As well as his regular classroom duties, Mr Humphries has also played many important roles in his service as a teacher.
He has been a HSC exam marker and question writer.
As for what’s next, Mr Humphries said he loves life in Deniliquin and has no intention of moving.
“I intend to stay in town because Deni is a very welcoming town,” he said.
“I’ve felt part of it for many years, and I’m happy here.”
Deniliquin High School will pay tribute to Mr Humphries long-standing career and contributions to education in Deniliquin with a special afternoon tea today.
RSVPs for the event closed last week, but anyone still wishing to attend could contact Deniliquin High School for details.
“It will be good to catch up and see people,” Mr Humphries said of the celebrations.
“It’s nice that it enables the community to come together.”