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How a Bone Marrow Transplant Reconnected Me to My Sister

We were perfect biological matches, but so different in other areas of life. Could we ever find ourselves on the same page?


A photo illustration shows two women standing on opposite sides of a giant, hollowed-out bone, with a rope bridge stretched across the chasm.
Essay writer Joy Underhill reconnected with her sister Ginny through a bone marrow transplant. Would it be enough to bridge the divide in their relationship?
Michelle Kondrich

Editor’s note: This essay won first place in the 2025 Big Brick Review essay contest. 

I’m driving 300 miles upstate, wearing a gauze bandage and bringing home a bag of my sister’s hair.

Meadowbrook, Huntington, Cuomo Bridge. The New York exits fall behind me before I stop in Monticello, where the March snow is still piled high, the edges melting. At last I feel the pull of home, a place of broad lakes and unplanted fields, three weeks behind New York City in warmth and tulips.

My 67-year-old sister, Ginny, needs a bone marrow transplant, her one chance for a cure. And I am her perfect match. At 64, I don’t understand the science, but didn’t hesitate to say yes. Just two days prior, I was hooked up to a device that took my blood, spun out precious stem cells and — click-click-click — returned the rest to my veins. I read a book, ate oatmeal cookies and chatted with the nurses the whole time.

I don’t need these cells, at least not in the numbers induced by the drug I’ve been taking for five days. At the end of the procedure, the nurse shows me a bag of filtered blood and tells me it contains nearly 8 million of my stem cells.

“Your platelets are low, so don’t do anything strenuous for a day or two,” she says. “They grow back quickly.”

“I guess it’s not time to get that tattoo,” I say, and we both laugh.

Ginny needs these cells to save her life. After killing her bone marrow, doctors will infuse her with my cells, wait a couple of months, then a year, and see how well they take. There are no guarantees, but a sibling match is her best chance.

“A perfect 10,” they call me. I’ve never been perfect in my life.

Finding common ground

Ginny and I are mismatched in so many other areas of life. Our political views have driven us into corners, fighting like wolverines. I read online about how to survive Christmas if the reds and blues of the family do battle. It has only gotten worse.

She grew up navigating the nuances of high school cliques, and I kept my head down in schoolwork. She had serial boyfriends, and I spent Saturday nights with girlfriends who shared popcorn and waited for phone calls. She followed her husband to a Manhattan apartment; I met a local boy and raised my family in our hometown.

Still, when we spend time together, we stay up late unraveling the questions of our childhood, spinning through stories to make sense of the decisions our parents made and the ones they didn’t. Ginny can look at me and know I understand. I can look at her as a witness to those fundamental and troubled years.

My sister is practical, direct. I’m sentimental and work hard not to offend. But there are moments when we find ourselves on the same page.

I’ve collected a house full of stuff I can’t let go of: our mother’s childhood tea set, the WWI medals of a great-uncle, a pair of electric scissors I used as a child. My sister downsized each time she moved, so now her life is spare, meaningful and not tucked into dark boxes to collect time. I need the comfort of the past; she needs to shed that which no longer serves her.

When we sorted through our mother’s house, we came upon a box of things Mom couldn’t part with: old report cards, construction-paper valentines in faded pink, letters from our aunts. My sister peeked into a white envelope and passed it to me. In it was my black ponytail from 60 years ago, still held together with a rubber band. I instantly smelled Breck Creme Rinse and felt my mother’s gentle hands brushing my hair, 100 strokes a night.

Keeping a piece of her

Ginny tells me a story I’ve never heard. When she had chemo 30 years ago, she felt a shift in her scalp when she was washing her hair. Then, while blow-drying, her hair fell out all at once and flew around, a whirlwind of sudden loss. She didn’t know which was worse: looking at her bald head or sweeping up her fine hair from every crevice in the room. She didn’t want that to happen again.

So this time, when Ginny tells me she’s asked her neighbor to cut off her hair, I ask if I can stay. She doesn’t answer, but time gets away from us and there is Kim at the door, scissors and shaver in hand. She asks if she could pray for Ginny, and the three of us hold hands and cry. Soon Ginny’s long blonde hair is falling to the kitchen floor. And I am a witness to the courage it takes to choose a wig ahead of time, put on lipstick, and allow me to take a selfie of us at Long Beach on this, the day before she goes into the hospital.

I ask my sister if I can save her hair.

“What for?”

I want to spread it in the bushes back home. “The robins will line their nests with it,” I say. It seems a fitting ritual on the threshold of spring, a petition for my cells to secure themselves in her body and make her healthy again. Only 1 in 5 patients like her survive the first year.

A photo shows sisters Joy Underhill (on the left) and Ginny Martinez, in Queens, New York in March 2021. The photo was taken the day Joy donated stem cells for Ginny’s bone marrow transplant.
Joy Underhill (left) and her sister, Ginny Martinez, in Queens, New York, in March 2021. The photo was taken the day Joy donated stem cells for her sister’s bone marrow transplant.
Courtesy Joy Underhill

She shakes her head. “You’re whacked.”

Ultimately, I end up with her hair. She doesn’t need it or want it. But I need it to cement a new chapter for us both. Kim gathers Ginny’s fine hair into a bag, and I tuck it into my purse. It is somehow both featherlight and heavy as my thoughts that will darken the miles driving upstate: Roscoe, Homer, Auburn.

But before I leave, I drive over the Queensboro Bridge, its off-white paint peeling and brilliant in the weak sunshine. I’m meeting my sister and my son in Astoria for lunch.

We sit outside a ramen noodle restaurant. Parking spots have been turned into plywood and plastic seating during the winter months of the pandemic. We take off our masks to sip rich bone broth and peel tender meat from pork ribs.

As I pull out from my parking space, Ginny waves at me and says, almost as an afterthought, “You know, all those disagreements, they don’t mean a thing. It’s a clean slate from now on.” 

Boundaries giving way to bonds

On transplant day, I take her hair outside and spread it in the bushes. I wait for the birds to fly away with blonde strands in their beaks, but the wind takes it all. I hear my sister’s voice: Well, what did you expect?  

A few days after donation, I will be left with two tiny scars on my chest, and Ginny will lose the stubble of hair she has left. In a few months, she’ll learn if those 8 million cells are doing the work her body no longer can. And in a year, if all goes well, we’ll be digging our toes into the cold sand outside her Long Beach condo, the same blood nourishing us as sisters, our boundaries giving way to bonds.

Four years later, my sister is doing very well and has welcomed three new grandchildren ... and we still don’t talk politics.

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