The doggie duo, who have a combined age of 136 in human years, are searching for a forever home together.
The 13-year-old Border Terriers found themselves homeless after their owner passed away. Staff believe they could be the oldest brother and sister ever to end up at the York Road rehoming centre.
Devoted Jack and Poppy are said to be inseparable and are keeping each other company whilst they wait for their special someone to come along.
Amanda Sands, Manager at Dogs Trust Leeds says, "It is always sad when dogs lose their owner, but especially when they are as old as Jack and Poppy.
"They were obviously much loved as their owner had registered for our Canine Care Card which means when as owner passes away, we are able to take care of their dogs immediately. Luckily despite what they have been through they have settled in really quickly and as long as they're together, they're happy."
Despite their age the team say the two are lively, full of fun and although they would suit a quieter home they could live with older children.
Amanda adds, "We can’t fill the space left by their devoted owner, only a new loving family can do that and that’s why we want to find them a forever home together as soon as possible.
"They are absolutely adorable, really affectionate and they love their walks and then snuggling up together afterwards. They will be a beautiful addition to any family and we just hope they don’t have to wait too long for the comfy, cosy home they deserve."
If you think you could offer Poppy and Jack their ideal home, call the centre on 0300 303 0292 or visit them at Woodlands Farm, York Road, Leeds, LS15 4NL.