Women and Power will offer the chance to focus a spotlight on these women and how they shaped the special places we have all inherited.
Outstanding contribution
Justin Albert, our Director for Wales, said: 'We want to wish a very special Happy Birthday to Joan and a huge thank you from everyone at National Trust for her long and outstanding contribution to Erddig.'
'Over the next year, we want visitors to learn more about the women who have been instrumental in developing and influencing the course of our special places across Wales, from the ladies of the house, maids and stable hands to our staff and volunteers, like Joan.
'As the nation celebrates the 100th anniversary of female suffrage and conversations about the role of women are as prevalent as ever, we hope the Women and Power events and exhibitions will provoke visitors to share their hopes for how the role of women will change over the next hundred years.'
Share your hopes for women in the next 100 years with @NTWales using #BeLikeJoan
How to #BeLikeJoan in 2018
Be confident
'Have confidence in yourself. I had opportunities I didn’t take because I hadn’t the confidence.'
Be committed
'Make up your own mind what you want and if it’s really important try and stick to it.'
Be hardworking
'Just because a job is easy don’t think you don’t have to work hard at it.'