In Harvest Moon: 64, there a total of sixteen photos to collect. The first photo titled Gramps is in the album by default.
Album
Gramps
A photo of the protagonist when he was a child with his grandfather.
The photo is there by default.
Harvest King
A photo of the protagonist in front of the hot balloon at the Sewing Festival as King with the Mayor.
Acquired by being crowned King the year before than attending the Sewing Festival as King. There can be some troubles in receiving this photo, and may require resetting a few times before actually collecting it.
Horse Race
A photo of the protagonist celebrating his victory at the Horse Race with his horse and Hall at the horse track.
Acquired after coming first in the Horse Race.
Winning Cow
A photo of the protagonist with his prized cow, and some visitors at the player's farm.
Acquired by winning the Milk Festival. The next day, when leaving the winning cow outside, the three girls may come by for a photo.
A Rabbit in Winter
A photo of the protagonist with Ann in the mountain.
Acquired by helping Ann with her sprained ankle. One day in the Winter she will visit his house and ask him to come to the mountains with her, where the two of them spot a rare Pika Bunny. This photo can no longer be received after either Ann or the protagonist are married.
Kify Fairy Dance
A photo of the protagonist with Karen at the Vineyard.
Acquired by saving the Vineyard. On the 7th of Fall, Karen will ask the protagonist to come with her quickly to watch the Kifu Fairies. This photo can no longer be received after either Karen or the protagonist are married.
Home Completion
A photo of the protagonist playing with his dog outside his completed house.
Acquired after every extension for the farm is built.
Let's have a Party
A photo of the protagonist with his son, Father, Ann, Elli, Karen, Maria, Popuri, Kent, Stu, and animals.
To acquire this photo is uncertain, but what's widely agreed on is to be married, have a child, have all the power berries, a field full with either flowers or grass before Summer begins, a fully upgraded house, participated and have won every festival, take care of his livestock, ship items every day, have a full barn and coop, have at least one cow and sheep producing the highest quality produce, and have befriended everyone.
Baby's Birth
A photo of the protagonist with his wife and newborn son in his house.
Acquired after his wife has given birth. She will become pregnant approximately 3 seasons after the wedding ceremony.
Firefly Night
A photo of the protagonist with Maria outside her house watching fireflies.
Acquired by helping Maria with her sprained ankle. One day in the Summer she will visit the protagonist's house at night and ask him to a beautiful sight. This photo can no longer be received after either Maria or the protagonist are married.
The Blue Mist Flower
A photo of the protagonist with Popuri in the mountains.
Acquired by buying the rare seeds stocked by Lillia in the second year. After buying them, Popuri will give the protagonist assistance in planting the seed in the correct place. Every day, the flower must be watered until it's fully grown, which is when the photo will be taken.
Moondrop Essence
A photo of the protagonist with Elli in the mountains.
Acquired by helping Elli with her sprained ankle. One day in the Fall she will visit the protagonist's house and ask him to come to the mountains with her. This photo can no longer be received after either Elli or the protagonist are married.
Swimming Festival
A photo of the protagonist celebrating his victory at the Swimming Festival at the beach.
Acquired after winning the Swimming Festival.
Hot Springs
A photo of the protagonist celebrating with the Carpenters in front of the Hot Springs.
Acquired by accepting to help the carpenters build the Hot Springs after the earthquake in Winter then completing it.
Wonder Dog
A photo of the protagonist celebrating his victory at the Dog Race with his dog and the mayor at the horse track.
Acquired after coming first in the Dog Race.
Wedding Day
A photo of the protagonist with his newly wed wife outside the church.
Acquired during the wedding ceremony. The protagonist must propose to any of the five eligible girls before they leave or his rivals do.