"That personal achievement will sink in later but it was a special moment coming off and walking through the members' pavilion."
Nash told the Northern Advocate the feelings that Southee would eventually have in time.
"As he gets further away from it he'll appreciate what he's done," Nash said. "Tim [Southee] would have felt a bit deflated [after the match] from his own performance in a sense, and it's hard to celebrate what you've done when your team has blown a chance at making history.
"He'll certainly on reflection realise he's doing his job [as a bowler], he'll be totally stoked and proud of what he's done, and in 100 years his name will still be there.
"When I look back on my career it's not the individual things I remember, it's the team achievements I was part of with the Black Caps."
Nash said he was proud to be joined on the honours board, and in New Zealand cricketing history, by a fellow Northlander, adding that something must be working well for Northland Cricket.
"I think from a Northland perspective we should be stoked and really proud. From a small province in New Zealand we have turned out our fair share of Black Caps and they actually do things on the field," Nash said.
Northland cricket coach Stephen Cunis, who remembers helping Southee out as an 8-year-old, said his progression to being one of New Zealand's best bowlers has showed his true-blue Northland colours. "I'm chuffed not only for Timmy and Northland but for [his family] as well," Cunis said. "Because they live every ball [that Southee bowls], when he plays, they watch.
"I've been to Lord's with a few teams and walking round the outside you see the legends who've taken five or 10 wickets in a match and they have a designated area [celebrating their achievements], and, it's just cool to know a guy from Maungakaramea, and a true-blue Northlander, is going to be among them."