Bulls man Kevin Hartley is missing. He was last seen riding his quad bike from Parewanui Rd towards Santoft Forest, near Scotts Ferry, at the southern end of the Rangitīkei District.

A funeral has been held for the wife of missing Bulls man Kevin Hartley.

Police confirmed Joanne Hartley had died but would not disclose the circumstances of her death.

A death notice in the Manawatū Standard on Monday said Joanne Hartley died suddenly on March 14. Her funeral was in Palmerston North on Wednesday.

A Givealittle page has been set up for the family and already more than $7000 has been raised.

The page says the Hartleys are a much-loved family from Bulls in Rangitīkei who would do anything for anyone.

"Within a month Anna, William and new parents Leigh and Daniel have been struck with a double tragedy.

"Anna, 17, William, 21, and Leigh's, 26, father Kevin Hartley has been missing for four weeks and is still not found.

"Yesterday they lost their mother Joanne."

It described the Hartleys as amazing parents and friends and said anyone who had met them would understand the impact they made on anyone they met.

Kevin Hartley was last seen on February 16 on Parewanui Rd in Bulls, headed south towards Scotts Ferry Beach, on his red quad bike.

The bike was found in nearby dunes, but the 54-year-old has not been found.

A police spokeswoman said police were in a limited ongoing search phase and the matter remained active.

Joanne Hartley's death had been referred to the coroner.