It was one Murrurundi family in particular, and their boy, that inspired her to put a call out to train crew connections for drought relief donations.

"I have friends in Murrurundi, I've known Jen's mum since my kids were babies and Jen was already a teenager," she said.

"We renewed our friendship when I came up to the Sandy Hollow charity ride and it's continued since then.

"So I've been coming up here, I like to get out of Sydney on the weekends.

"When Jen mentioned to me about having no water and Coby can't have a bath and when they have a shower they've got to put a plug in and keep the water for the washing machine and then keep that for the veggies....I decided then, we've got a full rainwater tank at home and it's $25 each for those big 44 gallon water drums, we will fill them up from home and bring them up.

"What little kid can't have a bath, what little kid can't play in a splash pool?"

Sydney Trains Crew has a long history of helping others, every year the railway team does a collection of toys for the children's hospital and more recently they have run donations to bush fire-affected regions in the state including the evacuation zone at Taree Showground, Mount George and Nowendoc and Hillville.

With depots at Hornsby, North Sydney, Central, Mortdale, Waterfall, Campbelltown, Leppington, Penrith, Flemington, Auburn and two or three hundred crew members at each place, the donations have been a combined effort with multiple collection points.

"It's snowballed - it's gone crazy," Gretchen admitted.

"It took over my garage, it took over my house, my daughter was coming home from school and sorting things into boxes - food items, water, dog food.

"The response was overwhelming, I had days where I would just sit and cry happy tears."

Doing it For Our Farmers Murrurundi Pop Up Pantry, Rouchel, Dartbrook and other areas received donated food items, water and dog food over the weekend, and Gretchen has more trips planned over January so they can reach as many people as possible.

"I don't know who needs dog food, who needs hay, who needs what," Gretchen said.

"But what I was thinking is if I could fill up their pantry then they've got that money to spend on whatever else they want.

"I'm off work for all of January and I've committed to come back once a fortnight bringing water for Coby, I've bought him a little pool.

"So I thought while I'm at it I'll bring hay and I've already got people at work say to me I'll give you $100 once a fortnight for hay.

"We just want people to know that we care and just hang in there, this has been a combined effort, this is not official, it's not just me, it's all of the Sydney train crew wanting everyone to know that we care."