Kim Hunt's sister feels numb, sad

The sister of a NSW woman shot dead with her three children on a Riverina farm says all she feels is an "indescribable numbness and all encompassing, heart-wrenching sadness".

The bodies of Kim Hunt, 41, and her three children, Fletcher, 10, Mia, eight, and Phoebe, six, were found on their property outside Lockhart, west of Wagga Wagga, on Tuesday.

Police divers recovered a gun and the body of husband and father Geoff Hunt, 44, on a dam at the property on Wednesday.

Kim's sister, Jenny Geppert, on Thursday issued a brief statement through NSW police, saying she dearly loved and missed her family.

"The void that is left in our lives is immeasurable. They are profoundly missed," she said.

"All that can be felt is an indescribable numbness and all encompassing, heart-wrenching sadness with losing my sister, brother-in-law, nephew and nieces.

"My most beautiful, spirited sister, Kim, whom I idolised and adored; my dear brother-in-law, Geoff, who was incredibly generous and kind-hearted; my beautiful nephew and nieces Fletcher, Mia and Phoebe, who I cherished and thought of as my own children. All are loved dearly."

Ms Geppert added: "Please give a hug to those you love and count your blessings that they are with you."