Mark Kuhn is hunched over, one knee on the ground, pulling dandelions from an otherwise immaculate lawn. With a small, serrated blade, he carefully carves tiny leaves from the turf, extracting as much of their roots as he can reach, and places them in a plastic container beside him. Dandelions, I learn, are as prolific as they are stubborn.Three days earlier and some 4,000 miles away in my native England, Novak Djokovic had once again held the Wimbledon trophy aloft on the most revered court in all of tennis. Meanwhile, I was driving the 1,926 miles from my adopted home of Oakland, Calif., to be here, on this tennis court, on a farm in Northern Iowa, standing next to Mark and his weed-filled ice cream tub.I kick off my shoes and stand barefoot like a child, taking in the Midwestern summer. The grass on the soles of my feet is warm and welcoming, and the morning sun undulates on the corrugated metal of the Kuhn family’s sheds and silos. I feel like I’ve been here before.Mr. Kuhn on his court. The idea to build it first occurred to him in 1962.My memories of early childhood are mostly vague: a muted palette of inconsistency and confusion, lacking defined edges or chronology. But recollections of summers, which were spent in rural Cambridgeshire with my grandparents, are bathed in the palomino gold of the August sun on fields as far as the eye could see, and in the warmth of the love I felt there. Every afternoon, a curtain of decapitated dandelion-seed fluff, churned up by nearby combine harvesters, would fill the lattice patio window, on its way to offering seemingly infinite new beginnings.It was here I discovered tennis — albeit watching, not playing. I was a resolutely unathletic child, one of my more enduring traits. In 1997, most British households had only five television channels, two of which ran wall-to-wall Wimbledon coverage for two full weeks, every year. I would normally have been at school in late June, but it was clear to one of my more perceptive teachers — who knew that I’d struggled in recent years with my grandfather’s sudden death, and with my father’s decision to leave to start a new family — that I was deeply unhappy at home and would be better off beginning my summer break early.From the comfort and loving safety of Nan’s sofa, I quickly became invested in the progress of Tim Henman, who made it to the quarterfinals. At first, it was because there was simply nothing else on TV, and the whiff of British success at Wimbledon tends to send my country into an inexplicably contagious fever. Ultimately though, it was Henman’s dogged determination that kept me hooked. An unlikely hero, his resolve was an unexpected ember of inspiration for a lost kid who was desperately grasping for something solid to hang on to.Two tennis professionals, Kiranpal Pannu and Nathan Healey, during a practice session.A group of ball girls lines up in a shed beside the court.A breeze flutters through the six-feet-tall cornstalks. Mark tells me the corn grows so quickly this time of year that you can actually hear it. I’m not sure if he’s serious, but I furtively prick an ear, just in case. The lament of a mourning dove is accompanied by the shrill urgency of a red-winged blackbird flitting between field and power line. At ground level I hear the occasional crunch of tires on the loose gravel road beyond the farm’s perimeter. Necks craned, passers-by peer for a better view of the All Iowa Lawn Tennis Club, as spectacular as it is incongruous, and a plume of dust forms in their curious wake.Exactly 20 years ago, Mark, together with his wife Denise and their two sons, Mason and Alex, began the laborious and experimental undertaking of building a grass tennis court on their farm on the outskirts of Charles City, Iowa. It took more than a year to finish.It was the realization of a dream the reluctant third-generation farmer had held since 1962, having become enamored of Wimbledon two years previously when he heard a BBC broadcast on his grandfather’s shortwave radio. Twelve years old and absent-mindedly doing his chores, Mark noticed the cattle feedlot he was standing in was about the size of a regulation tennis court. But it wasn’t until the sudden death of a close friend, some 40 years later, that he was galvanized to try to make his far-fetched daydream a reality.Mark plays on the court occasionally, but his main source of joy lies in the rituals of preparing it for others to enjoy. The All Iowa Lawn Tennis Club — a nod to Wimbledon’s home at the All England Lawn Tennis Club — is open to whoever wants to drop Mark a line to request a reservation.Mr. Kuhn operates his greens mower.With string guiding the way, the lines on the court are painted with a titanium dioxide compound.Mr. Kuhn measures the height of the net.The week following the 2022 Wimbledon Championships, Mark is preparing to host Madison Keys, a one-time U.S. Open finalist, for an exhibition tournament benefiting her Kindness Wins Foundation.Just after sunrise, using a greens mower, Mark meticulously crops one millimeter off the top of the grass in four directions, giving the surface its distinctive stripes. Then it’s time for his favorite task: marking up the court. After aligning the edges with string, he slowly paints the tramlines — one careful step at a time, heel to toe — with a brilliant white titanium dioxide compound. The net is then dropped and pulled drum-tight, until it measures exactly three feet in the middle.Tips for Parents to Help Their Struggling TeensCard 1 of 6Tips for Parents to Help Their Struggling TeensAre you concerned for your teen? More