Granger Smith‘s wifeAmberis spending time with their children after the death of their younger sonRiver Kelly.

The couple’s 3-year-old tragicallydied last month in a drowning accidentat home. That same day, the country singer, 39,shared the “unthinkable” newson Twitter and Instagram, revealing that “despite doctor’s best efforts, he was unable to be revived.” River was laid to rest on June 11.

In an Instagram post on Monday, Ambershared two photoswith River’s siblings: big brother Lincoln Monarch, 5, and sister London, 7. In the first picture, the kids pose for a selfie with their mom, while in the second snap, they each strike a happy pose.

“The smiles on these faces are some of the brightest lights in the dark. ❤️,” she wrote.

Amber Smith/ Instagram

Amber Smith

London (L) and Lincoln Monarch Smith.Amber Smith/ Instagram

Amber Smith

Earlier this month, Amber revealed thatRiver’s organs had saved the life of two adults.

“His body is perfect, his organs are perfect, we had to do something,” she explained in a lengthyInstagram postabout deciding to donate. “There are so many people waiting for an organ to save their lives.”

“We got the letter that our tiny, red-headed hero gave life to 2 adults,” Amber continued. “A 49-year-old woman and a 53-year-old man. I cried when we opened it. Cried out of sadness & cried out of love.”

“I’mso proud to be River’s mama and I’mso grateful to God that he gave him to us for those incredible three years. I pray these two recipients live healthy, joy filled, full throttle lives just like Riv,” she added. “It was one of the hardest, yet easiest, decisions we’ve ever made.”

RELATED VIDEO: Granger Smith Reveals Final Special Moment He Shared with Son River That Suddenly Turned to Tragedy

“I couldn’t sleep last night so I was going through photos of River. I noticed so many with this light around him that I never really took notice of before,” she began in thecaption of a photo galleryfeaturing her son.

“We always used to ask him what he wanted to be when he grew up. He never said a fireman, or police man or doctor. He always said ‘when I get bigger I reach the light,’ ” Amber continued.

Amber Smith and son River.Amber Smith/Instagram

Granger Smith Amber River

Last month,Granger debuted a new tattoowhile making hisemotional return to the stagefollowing his son’s death at the Country LakeShake music festival in Chicago. The tattoo consists of the name “River” written in large black script across the country musician’s right forearm.

“We should all be so blessed to be able to live like Riv,” he added.

source: people.com