My mother had a sister who died within the first year of her life. Being in the 20s and living on a farm, baby portraits were a luxury. Now, years later, after all the siblings pass away, there will be nothing left to remember her by other than a grave marker and a public record.
Your images, no matter how difficult will always be a reminder to family that in her few moments with us on this Earth she had a profound effect on many. I think in the years to come your portrait will help those who see it understand that the bonds of love always transcend the fragility of our human existence.